diff --git a/docs/GLOSSARY.html b/docs/GLOSSARY.html
index 7251bd00c..d37e6be38 100644
--- a/docs/GLOSSARY.html
+++ b/docs/GLOSSARY.html
@@ -359,7 +359,7 @@
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"dir":"neutral"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"GLOSSARY.md","mtime":"2018-11-01T13:40:21.815Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-01T13:43:41.803Z"},"basePath":".","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"dir":"neutral"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"GLOSSARY.md","mtime":"2018-11-10T10:38:22.488Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-10T10:41:56.704Z"},"basePath":".","book":{"language":""}});
         });
     </script>
 </div>
diff --git a/docs/db/classes/_disk_.diskdb.md b/docs/db/classes/_disk_.diskdb.md
index 24d68e6d0..a4bc19435 100644
--- a/docs/db/classes/_disk_.diskdb.md
+++ b/docs/db/classes/_disk_.diskdb.md
@@ -74,7 +74,7 @@ diskDb.close();
 
 *Overrides [TransactionDb](_engines_transactiondb_.transactiondb.md).[constructor](_engines_transactiondb_.transactiondb.md#constructor)*
 
-*Defined in [Disk.ts:66](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/Disk.ts#L66)*
+*Defined in [Disk.ts:66](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/Disk.ts#L66)*
 
 **Parameters:**
 
@@ -98,7 +98,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[close](_engines_transactiondb_.transactiondb.md#close)*
 
-*Defined in [engines/TransactionDb.ts:51](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L51)*
+*Defined in [engines/TransactionDb.ts:51](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L51)*
 
 **Returns:** `void`
 
@@ -111,7 +111,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[del](_engines_transactiondb_.transactiondb.md#del)*
 
-*Defined in [engines/TransactionDb.ts:81](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L81)*
+*Defined in [engines/TransactionDb.ts:81](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L81)*
 
 **Parameters:**
 
@@ -130,7 +130,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[drop](_engines_transactiondb_.transactiondb.md#drop)*
 
-*Defined in [engines/TransactionDb.ts:59](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L59)*
+*Defined in [engines/TransactionDb.ts:59](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L59)*
 
 **Returns:** `void`
 
@@ -143,7 +143,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[empty](_engines_transactiondb_.transactiondb.md#empty)*
 
-*Defined in [engines/TransactionDb.ts:63](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L63)*
+*Defined in [engines/TransactionDb.ts:63](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L63)*
 
 **Returns:** `void`
 
@@ -156,7 +156,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[get](_engines_transactiondb_.transactiondb.md#get)*
 
-*Defined in [engines/TransactionDb.ts:93](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L93)*
+*Defined in [engines/TransactionDb.ts:93](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L93)*
 
 **Parameters:**
 
@@ -175,7 +175,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[maintain](_engines_transactiondb_.transactiondb.md#maintain)*
 
-*Defined in [engines/TransactionDb.ts:71](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L71)*
+*Defined in [engines/TransactionDb.ts:71](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L71)*
 
 **Parameters:**
 
@@ -194,7 +194,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[open](_engines_transactiondb_.transactiondb.md#open)*
 
-*Defined in [engines/TransactionDb.ts:55](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L55)*
+*Defined in [engines/TransactionDb.ts:55](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L55)*
 
 **Returns:** `void`
 
@@ -207,7 +207,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[put](_engines_transactiondb_.transactiondb.md#put)*
 
-*Defined in [engines/TransactionDb.ts:107](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L107)*
+*Defined in [engines/TransactionDb.ts:107](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L107)*
 
 **Parameters:**
 
@@ -227,7 +227,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[rename](_engines_transactiondb_.transactiondb.md#rename)*
 
-*Defined in [engines/TransactionDb.ts:67](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L67)*
+*Defined in [engines/TransactionDb.ts:67](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L67)*
 
 **Parameters:**
 
@@ -247,7 +247,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[size](_engines_transactiondb_.transactiondb.md#size)*
 
-*Defined in [engines/TransactionDb.ts:77](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L77)*
+*Defined in [engines/TransactionDb.ts:77](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L77)*
 
 **Returns:** `number`
 
@@ -260,7 +260,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[transaction](_engines_transactiondb_.transactiondb.md#transaction)*
 
-*Defined in [engines/TransactionDb.ts:29](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L29)*
+*Defined in [engines/TransactionDb.ts:29](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L29)*
 
 **Parameters:**
 
diff --git a/docs/db/classes/_engines_filetreedb_.filetreedb.md b/docs/db/classes/_engines_filetreedb_.filetreedb.md
index e9b914880..26f53ef1a 100644
--- a/docs/db/classes/_engines_filetreedb_.filetreedb.md
+++ b/docs/db/classes/_engines_filetreedb_.filetreedb.md
@@ -16,7 +16,7 @@
 
 ⊕ **new FileTreeDb**(location: *`string`*): [FileTreeDb](_engines_filetreedb_.filetreedb.md)
 
-*Defined in [engines/FileTreeDb.ts:21](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/FileTreeDb.ts#L21)*
+*Defined in [engines/FileTreeDb.ts:21](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/FileTreeDb.ts#L21)*
 
 **Parameters:**
 
@@ -36,7 +36,7 @@ ___
 
 **● _location**: *`string`*
 
-*Defined in [engines/FileTreeDb.ts:21](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/FileTreeDb.ts#L21)*
+*Defined in [engines/FileTreeDb.ts:21](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/FileTreeDb.ts#L21)*
 
 ___
 
@@ -48,7 +48,7 @@ ___
 
 ▸ **close**(): `void`
 
-*Defined in [engines/FileTreeDb.ts:46](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/FileTreeDb.ts#L46)*
+*Defined in [engines/FileTreeDb.ts:46](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/FileTreeDb.ts#L46)*
 
 **Returns:** `void`
 
@@ -59,7 +59,7 @@ ___
 
 ▸ **del**(key: *`Uint8Array`*): `void`
 
-*Defined in [engines/FileTreeDb.ts:76](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/FileTreeDb.ts#L76)*
+*Defined in [engines/FileTreeDb.ts:76](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/FileTreeDb.ts#L76)*
 
 **Parameters:**
 
@@ -76,7 +76,7 @@ ___
 
 ▸ **drop**(): `void`
 
-*Defined in [engines/FileTreeDb.ts:50](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/FileTreeDb.ts#L50)*
+*Defined in [engines/FileTreeDb.ts:50](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/FileTreeDb.ts#L50)*
 
 **Returns:** `void`
 
@@ -87,7 +87,7 @@ ___
 
 ▸ **empty**(): `void`
 
-*Defined in [engines/FileTreeDb.ts:54](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/FileTreeDb.ts#L54)*
+*Defined in [engines/FileTreeDb.ts:54](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/FileTreeDb.ts#L54)*
 
 **Returns:** `void`
 
@@ -98,7 +98,7 @@ ___
 
 ▸ **get**(key: *`Uint8Array`*):  `Uint8Array` &#124; `null`
 
-*Defined in [engines/FileTreeDb.ts:86](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/FileTreeDb.ts#L86)*
+*Defined in [engines/FileTreeDb.ts:86](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/FileTreeDb.ts#L86)*
 
 **Parameters:**
 
@@ -115,7 +115,7 @@ ___
 
 ▸ **maintain**(fn: *`ProgressCb`*): `void`
 
-*Defined in [engines/FileTreeDb.ts:68](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/FileTreeDb.ts#L68)*
+*Defined in [engines/FileTreeDb.ts:68](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/FileTreeDb.ts#L68)*
 
 **Parameters:**
 
@@ -132,7 +132,7 @@ ___
 
 ▸ **open**(): `void`
 
-*Defined in [engines/FileTreeDb.ts:42](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/FileTreeDb.ts#L42)*
+*Defined in [engines/FileTreeDb.ts:42](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/FileTreeDb.ts#L42)*
 
 **Returns:** `void`
 
@@ -143,7 +143,7 @@ ___
 
 ▸ **put**(key: *`Uint8Array`*, value: *`Uint8Array`*): `void`
 
-*Defined in [engines/FileTreeDb.ts:100](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/FileTreeDb.ts#L100)*
+*Defined in [engines/FileTreeDb.ts:100](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/FileTreeDb.ts#L100)*
 
 **Parameters:**
 
@@ -161,7 +161,7 @@ ___
 
 ▸ **rename**(base: *`string`*, file: *`string`*): `void`
 
-*Defined in [engines/FileTreeDb.ts:58](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/FileTreeDb.ts#L58)*
+*Defined in [engines/FileTreeDb.ts:58](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/FileTreeDb.ts#L58)*
 
 **Parameters:**
 
@@ -179,7 +179,7 @@ ___
 
 ▸ **size**(): `number`
 
-*Defined in [engines/FileTreeDb.ts:62](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/FileTreeDb.ts#L62)*
+*Defined in [engines/FileTreeDb.ts:62](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/FileTreeDb.ts#L62)*
 
 **Returns:** `number`
 
diff --git a/docs/db/classes/_engines_lrudb_.lrudb.md b/docs/db/classes/_engines_lrudb_.lrudb.md
index fa691ea50..56c9b4404 100644
--- a/docs/db/classes/_engines_lrudb_.lrudb.md
+++ b/docs/db/classes/_engines_lrudb_.lrudb.md
@@ -16,7 +16,7 @@
 
 ⊕ **new LruDb**(backing: *`BaseDb`*, itemCount?: *`number`*): [LruDb](_engines_lrudb_.lrudb.md)
 
-*Defined in [engines/LruDb.ts:20](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/LruDb.ts#L20)*
+*Defined in [engines/LruDb.ts:20](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/LruDb.ts#L20)*
 
 **Parameters:**
 
@@ -37,7 +37,7 @@ ___
 
 ▸ **_getLru**(key: *`Uint8Array`*):  `CachedValue` &#124; `undefined`
 
-*Defined in [engines/LruDb.ts:87](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/LruDb.ts#L87)*
+*Defined in [engines/LruDb.ts:87](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/LruDb.ts#L87)*
 
 **Parameters:**
 
@@ -54,7 +54,7 @@ ___
 
 ▸ **close**(): `void`
 
-*Defined in [engines/LruDb.ts:27](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/LruDb.ts#L27)*
+*Defined in [engines/LruDb.ts:27](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/LruDb.ts#L27)*
 
 **Returns:** `void`
 
@@ -65,7 +65,7 @@ ___
 
 ▸ **del**(key: *`Uint8Array`*): `void`
 
-*Defined in [engines/LruDb.ts:64](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/LruDb.ts#L64)*
+*Defined in [engines/LruDb.ts:64](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/LruDb.ts#L64)*
 
 **Parameters:**
 
@@ -82,7 +82,7 @@ ___
 
 ▸ **drop**(): `void`
 
-*Defined in [engines/LruDb.ts:41](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/LruDb.ts#L41)*
+*Defined in [engines/LruDb.ts:41](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/LruDb.ts#L41)*
 
 **Returns:** `void`
 
@@ -93,7 +93,7 @@ ___
 
 ▸ **empty**(): `void`
 
-*Defined in [engines/LruDb.ts:45](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/LruDb.ts#L45)*
+*Defined in [engines/LruDb.ts:45](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/LruDb.ts#L45)*
 
 **Returns:** `void`
 
@@ -104,7 +104,7 @@ ___
 
 ▸ **get**(key: *`Uint8Array`*):  `Uint8Array` &#124; `null`
 
-*Defined in [engines/LruDb.ts:71](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/LruDb.ts#L71)*
+*Defined in [engines/LruDb.ts:71](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/LruDb.ts#L71)*
 
 **Parameters:**
 
@@ -121,7 +121,7 @@ ___
 
 ▸ **maintain**(fn: *`ProgressCb`*): `void`
 
-*Defined in [engines/LruDb.ts:56](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/LruDb.ts#L56)*
+*Defined in [engines/LruDb.ts:56](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/LruDb.ts#L56)*
 
 **Parameters:**
 
@@ -138,7 +138,7 @@ ___
 
 ▸ **open**(): `void`
 
-*Defined in [engines/LruDb.ts:34](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/LruDb.ts#L34)*
+*Defined in [engines/LruDb.ts:34](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/LruDb.ts#L34)*
 
 **Returns:** `void`
 
@@ -149,7 +149,7 @@ ___
 
 ▸ **put**(key: *`Uint8Array`*, value: *`Uint8Array`*): `void`
 
-*Defined in [engines/LruDb.ts:91](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/LruDb.ts#L91)*
+*Defined in [engines/LruDb.ts:91](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/LruDb.ts#L91)*
 
 **Parameters:**
 
@@ -167,7 +167,7 @@ ___
 
 ▸ **rename**(base: *`string`*, file: *`string`*): `void`
 
-*Defined in [engines/LruDb.ts:52](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/LruDb.ts#L52)*
+*Defined in [engines/LruDb.ts:52](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/LruDb.ts#L52)*
 
 **Parameters:**
 
@@ -185,7 +185,7 @@ ___
 
 ▸ **size**(): `number`
 
-*Defined in [engines/LruDb.ts:60](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/LruDb.ts#L60)*
+*Defined in [engines/LruDb.ts:60](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/LruDb.ts#L60)*
 
 **Returns:** `number`
 
diff --git a/docs/db/classes/_engines_memorydb_.memorydb.md b/docs/db/classes/_engines_memorydb_.memorydb.md
index 034efd0f9..828ea7144 100644
--- a/docs/db/classes/_engines_memorydb_.memorydb.md
+++ b/docs/db/classes/_engines_memorydb_.memorydb.md
@@ -16,7 +16,7 @@
 
 ⊕ **new MemoryDb**(options?: *`BaseDbOptions`*): [MemoryDb](_engines_memorydb_.memorydb.md)
 
-*Defined in [engines/MemoryDb.ts:16](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/MemoryDb.ts#L16)*
+*Defined in [engines/MemoryDb.ts:16](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/MemoryDb.ts#L16)*
 
 **Parameters:**
 
@@ -36,7 +36,7 @@ ___
 
 ▸ **close**(): `void`
 
-*Defined in [engines/MemoryDb.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/MemoryDb.ts#L22)*
+*Defined in [engines/MemoryDb.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/MemoryDb.ts#L22)*
 
 **Returns:** `void`
 
@@ -47,7 +47,7 @@ ___
 
 ▸ **del**(key: *`Uint8Array`*): `void`
 
-*Defined in [engines/MemoryDb.ts:56](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/MemoryDb.ts#L56)*
+*Defined in [engines/MemoryDb.ts:56](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/MemoryDb.ts#L56)*
 
 **Parameters:**
 
@@ -64,7 +64,7 @@ ___
 
 ▸ **drop**(): `void`
 
-*Defined in [engines/MemoryDb.ts:30](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/MemoryDb.ts#L30)*
+*Defined in [engines/MemoryDb.ts:30](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/MemoryDb.ts#L30)*
 
 **Returns:** `void`
 
@@ -75,7 +75,7 @@ ___
 
 ▸ **empty**(): `void`
 
-*Defined in [engines/MemoryDb.ts:34](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/MemoryDb.ts#L34)*
+*Defined in [engines/MemoryDb.ts:34](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/MemoryDb.ts#L34)*
 
 **Returns:** `void`
 
@@ -86,7 +86,7 @@ ___
 
 ▸ **get**(key: *`Uint8Array`*):  `Uint8Array` &#124; `null`
 
-*Defined in [engines/MemoryDb.ts:62](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/MemoryDb.ts#L62)*
+*Defined in [engines/MemoryDb.ts:62](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/MemoryDb.ts#L62)*
 
 **Parameters:**
 
@@ -103,7 +103,7 @@ ___
 
 ▸ **maintain**(fn: *`ProgressCb`*): `void`
 
-*Defined in [engines/MemoryDb.ts:42](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/MemoryDb.ts#L42)*
+*Defined in [engines/MemoryDb.ts:42](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/MemoryDb.ts#L42)*
 
 **Parameters:**
 
@@ -120,7 +120,7 @@ ___
 
 ▸ **open**(): `void`
 
-*Defined in [engines/MemoryDb.ts:26](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/MemoryDb.ts#L26)*
+*Defined in [engines/MemoryDb.ts:26](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/MemoryDb.ts#L26)*
 
 **Returns:** `void`
 
@@ -131,7 +131,7 @@ ___
 
 ▸ **put**(key: *`Uint8Array`*, value: *`Uint8Array`*): `void`
 
-*Defined in [engines/MemoryDb.ts:68](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/MemoryDb.ts#L68)*
+*Defined in [engines/MemoryDb.ts:68](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/MemoryDb.ts#L68)*
 
 **Parameters:**
 
@@ -149,7 +149,7 @@ ___
 
 ▸ **rename**(base: *`string`*, file: *`string`*): `void`
 
-*Defined in [engines/MemoryDb.ts:38](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/MemoryDb.ts#L38)*
+*Defined in [engines/MemoryDb.ts:38](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/MemoryDb.ts#L38)*
 
 **Parameters:**
 
@@ -167,7 +167,7 @@ ___
 
 ▸ **size**(): `number`
 
-*Defined in [engines/MemoryDb.ts:50](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/MemoryDb.ts#L50)*
+*Defined in [engines/MemoryDb.ts:50](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/MemoryDb.ts#L50)*
 
 **Returns:** `number`
 
diff --git a/docs/db/classes/_engines_transactiondb_.transactiondb.md b/docs/db/classes/_engines_transactiondb_.transactiondb.md
index 4bd81ac13..80d9b89b1 100644
--- a/docs/db/classes/_engines_transactiondb_.transactiondb.md
+++ b/docs/db/classes/_engines_transactiondb_.transactiondb.md
@@ -20,7 +20,7 @@
 
 ⊕ **new TransactionDb**(backing: *`BaseDb`*): [TransactionDb](_engines_transactiondb_.transactiondb.md)
 
-*Defined in [engines/TransactionDb.ts:21](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L21)*
+*Defined in [engines/TransactionDb.ts:21](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L21)*
 
 **Parameters:**
 
@@ -40,7 +40,7 @@ ___
 
 ▸ **close**(): `void`
 
-*Defined in [engines/TransactionDb.ts:51](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L51)*
+*Defined in [engines/TransactionDb.ts:51](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L51)*
 
 **Returns:** `void`
 
@@ -51,7 +51,7 @@ ___
 
 ▸ **del**(key: *`Uint8Array`*): `void`
 
-*Defined in [engines/TransactionDb.ts:81](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L81)*
+*Defined in [engines/TransactionDb.ts:81](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L81)*
 
 **Parameters:**
 
@@ -68,7 +68,7 @@ ___
 
 ▸ **drop**(): `void`
 
-*Defined in [engines/TransactionDb.ts:59](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L59)*
+*Defined in [engines/TransactionDb.ts:59](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L59)*
 
 **Returns:** `void`
 
@@ -79,7 +79,7 @@ ___
 
 ▸ **empty**(): `void`
 
-*Defined in [engines/TransactionDb.ts:63](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L63)*
+*Defined in [engines/TransactionDb.ts:63](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L63)*
 
 **Returns:** `void`
 
@@ -90,7 +90,7 @@ ___
 
 ▸ **get**(key: *`Uint8Array`*):  `Uint8Array` &#124; `null`
 
-*Defined in [engines/TransactionDb.ts:93](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L93)*
+*Defined in [engines/TransactionDb.ts:93](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L93)*
 
 **Parameters:**
 
@@ -107,7 +107,7 @@ ___
 
 ▸ **maintain**(fn: *`ProgressCb`*): `void`
 
-*Defined in [engines/TransactionDb.ts:71](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L71)*
+*Defined in [engines/TransactionDb.ts:71](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L71)*
 
 **Parameters:**
 
@@ -124,7 +124,7 @@ ___
 
 ▸ **open**(): `void`
 
-*Defined in [engines/TransactionDb.ts:55](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L55)*
+*Defined in [engines/TransactionDb.ts:55](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L55)*
 
 **Returns:** `void`
 
@@ -135,7 +135,7 @@ ___
 
 ▸ **put**(key: *`Uint8Array`*, value: *`Uint8Array`*): `void`
 
-*Defined in [engines/TransactionDb.ts:107](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L107)*
+*Defined in [engines/TransactionDb.ts:107](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L107)*
 
 **Parameters:**
 
@@ -153,7 +153,7 @@ ___
 
 ▸ **rename**(base: *`string`*, file: *`string`*): `void`
 
-*Defined in [engines/TransactionDb.ts:67](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L67)*
+*Defined in [engines/TransactionDb.ts:67](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L67)*
 
 **Parameters:**
 
@@ -171,7 +171,7 @@ ___
 
 ▸ **size**(): `number`
 
-*Defined in [engines/TransactionDb.ts:77](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L77)*
+*Defined in [engines/TransactionDb.ts:77](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L77)*
 
 **Returns:** `number`
 
@@ -182,7 +182,7 @@ ___
 
 ▸ **transaction**(fn: *`function`*): `boolean`
 
-*Defined in [engines/TransactionDb.ts:29](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L29)*
+*Defined in [engines/TransactionDb.ts:29](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L29)*
 
 **Parameters:**
 
diff --git a/docs/db/classes/_fileflatdb_compact_.compact.md b/docs/db/classes/_fileflatdb_compact_.compact.md
index 4999ddd43..459c3ed2d 100644
--- a/docs/db/classes/_fileflatdb_compact_.compact.md
+++ b/docs/db/classes/_fileflatdb_compact_.compact.md
@@ -12,7 +12,7 @@
 
 ⊕ **new Compact**(file: *`string`*): [Compact](_fileflatdb_compact_.compact.md)
 
-*Defined in [FileFlatDb/Compact.ts:17](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/Compact.ts#L17)*
+*Defined in [FileFlatDb/Compact.ts:17](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/Compact.ts#L17)*
 
 **Parameters:**
 
@@ -32,7 +32,7 @@ ___
 
 ▸ **maintain**(fn: *`ProgressCb`*): `void`
 
-*Defined in [FileFlatDb/Compact.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/Compact.ts#L24)*
+*Defined in [FileFlatDb/Compact.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/Compact.ts#L24)*
 
 **Parameters:**
 
diff --git a/docs/db/classes/_fileflatdb_index_.fileflatdb.md b/docs/db/classes/_fileflatdb_index_.fileflatdb.md
index 984cac916..1752adafb 100644
--- a/docs/db/classes/_fileflatdb_index_.fileflatdb.md
+++ b/docs/db/classes/_fileflatdb_index_.fileflatdb.md
@@ -16,7 +16,7 @@
 
 ⊕ **new FileFlatDb**(base: *`string`*, file?: *`string`*, options?: *`BaseDbOptions`*): [FileFlatDb](_fileflatdb_index_.fileflatdb.md)
 
-*Defined in [FileFlatDb/index.ts:32](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/index.ts#L32)*
+*Defined in [FileFlatDb/index.ts:32](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/index.ts#L32)*
 
 **Parameters:**
 
@@ -38,7 +38,7 @@ ___
 
 ▸ **close**(): `void`
 
-*Defined in [FileFlatDb/index.ts:58](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/index.ts#L58)*
+*Defined in [FileFlatDb/index.ts:58](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/index.ts#L58)*
 
 **Returns:** `void`
 
@@ -49,7 +49,7 @@ ___
 
 ▸ **del**(key: *`Uint8Array`*): `void`
 
-*Defined in [FileFlatDb/index.ts:105](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/index.ts#L105)*
+*Defined in [FileFlatDb/index.ts:105](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/index.ts#L105)*
 
 **Parameters:**
 
@@ -66,7 +66,7 @@ ___
 
 ▸ **drop**(): `void`
 
-*Defined in [FileFlatDb/index.ts:68](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/index.ts#L68)*
+*Defined in [FileFlatDb/index.ts:68](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/index.ts#L68)*
 
 **Returns:** `void`
 
@@ -77,7 +77,7 @@ ___
 
 ▸ **empty**(): `void`
 
-*Defined in [FileFlatDb/index.ts:74](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/index.ts#L74)*
+*Defined in [FileFlatDb/index.ts:74](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/index.ts#L74)*
 
 **Returns:** `void`
 
@@ -88,7 +88,7 @@ ___
 
 ▸ **get**(key: *`Uint8Array`*):  `Uint8Array` &#124; `null`
 
-*Defined in [FileFlatDb/index.ts:109](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/index.ts#L109)*
+*Defined in [FileFlatDb/index.ts:109](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/index.ts#L109)*
 
 **Parameters:**
 
@@ -105,7 +105,7 @@ ___
 
 ▸ **maintain**(fn: *`ProgressCb`*): `void`
 
-*Defined in [FileFlatDb/index.ts:97](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/index.ts#L97)*
+*Defined in [FileFlatDb/index.ts:97](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/index.ts#L97)*
 
 **Parameters:**
 
@@ -122,7 +122,7 @@ ___
 
 ▸ **open**(): `void`
 
-*Defined in [FileFlatDb/index.ts:48](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/index.ts#L48)*
+*Defined in [FileFlatDb/index.ts:48](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/index.ts#L48)*
 
 **Returns:** `void`
 
@@ -133,7 +133,7 @@ ___
 
 ▸ **put**(key: *`Uint8Array`*, value: *`Uint8Array`*): `void`
 
-*Defined in [FileFlatDb/index.ts:127](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/index.ts#L127)*
+*Defined in [FileFlatDb/index.ts:127](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/index.ts#L127)*
 
 **Parameters:**
 
@@ -151,7 +151,7 @@ ___
 
 ▸ **rename**(base: *`string`*, file: *`string`*): `void`
 
-*Defined in [FileFlatDb/index.ts:85](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/index.ts#L85)*
+*Defined in [FileFlatDb/index.ts:85](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/index.ts#L85)*
 
 **Parameters:**
 
@@ -169,7 +169,7 @@ ___
 
 ▸ **size**(): `number`
 
-*Defined in [FileFlatDb/index.ts:81](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/index.ts#L81)*
+*Defined in [FileFlatDb/index.ts:81](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/index.ts#L81)*
 
 **Returns:** `number`
 
diff --git a/docs/db/classes/_memory_.memory.md b/docs/db/classes/_memory_.memory.md
index cb50705e8..d96b94c51 100644
--- a/docs/db/classes/_memory_.memory.md
+++ b/docs/db/classes/_memory_.memory.md
@@ -72,7 +72,7 @@ memoryDb.close();
 
 *Overrides [TransactionDb](_engines_transactiondb_.transactiondb.md).[constructor](_engines_transactiondb_.transactiondb.md#constructor)*
 
-*Defined in [Memory.ts:66](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/Memory.ts#L66)*
+*Defined in [Memory.ts:66](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/Memory.ts#L66)*
 
 **Parameters:**
 
@@ -94,7 +94,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[close](_engines_transactiondb_.transactiondb.md#close)*
 
-*Defined in [engines/TransactionDb.ts:51](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L51)*
+*Defined in [engines/TransactionDb.ts:51](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L51)*
 
 **Returns:** `void`
 
@@ -107,7 +107,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[del](_engines_transactiondb_.transactiondb.md#del)*
 
-*Defined in [engines/TransactionDb.ts:81](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L81)*
+*Defined in [engines/TransactionDb.ts:81](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L81)*
 
 **Parameters:**
 
@@ -126,7 +126,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[drop](_engines_transactiondb_.transactiondb.md#drop)*
 
-*Defined in [engines/TransactionDb.ts:59](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L59)*
+*Defined in [engines/TransactionDb.ts:59](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L59)*
 
 **Returns:** `void`
 
@@ -139,7 +139,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[empty](_engines_transactiondb_.transactiondb.md#empty)*
 
-*Defined in [engines/TransactionDb.ts:63](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L63)*
+*Defined in [engines/TransactionDb.ts:63](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L63)*
 
 **Returns:** `void`
 
@@ -152,7 +152,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[get](_engines_transactiondb_.transactiondb.md#get)*
 
-*Defined in [engines/TransactionDb.ts:93](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L93)*
+*Defined in [engines/TransactionDb.ts:93](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L93)*
 
 **Parameters:**
 
@@ -171,7 +171,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[maintain](_engines_transactiondb_.transactiondb.md#maintain)*
 
-*Defined in [engines/TransactionDb.ts:71](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L71)*
+*Defined in [engines/TransactionDb.ts:71](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L71)*
 
 **Parameters:**
 
@@ -190,7 +190,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[open](_engines_transactiondb_.transactiondb.md#open)*
 
-*Defined in [engines/TransactionDb.ts:55](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L55)*
+*Defined in [engines/TransactionDb.ts:55](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L55)*
 
 **Returns:** `void`
 
@@ -203,7 +203,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[put](_engines_transactiondb_.transactiondb.md#put)*
 
-*Defined in [engines/TransactionDb.ts:107](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L107)*
+*Defined in [engines/TransactionDb.ts:107](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L107)*
 
 **Parameters:**
 
@@ -223,7 +223,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[rename](_engines_transactiondb_.transactiondb.md#rename)*
 
-*Defined in [engines/TransactionDb.ts:67](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L67)*
+*Defined in [engines/TransactionDb.ts:67](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L67)*
 
 **Parameters:**
 
@@ -243,7 +243,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[size](_engines_transactiondb_.transactiondb.md#size)*
 
-*Defined in [engines/TransactionDb.ts:77](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L77)*
+*Defined in [engines/TransactionDb.ts:77](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L77)*
 
 **Returns:** `number`
 
@@ -256,7 +256,7 @@ ___
 
 *Inherited from [TransactionDb](_engines_transactiondb_.transactiondb.md).[transaction](_engines_transactiondb_.transactiondb.md#transaction)*
 
-*Defined in [engines/TransactionDb.ts:29](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/engines/TransactionDb.ts#L29)*
+*Defined in [engines/TransactionDb.ts:29](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/engines/TransactionDb.ts#L29)*
 
 **Parameters:**
 
diff --git a/docs/db/enums/_fileflatdb_types_.slot.md b/docs/db/enums/_fileflatdb_types_.slot.md
index e56b403b3..d7020baa9 100644
--- a/docs/db/enums/_fileflatdb_types_.slot.md
+++ b/docs/db/enums/_fileflatdb_types_.slot.md
@@ -18,7 +18,7 @@
 
 **BRANCH**:  = 1
 
-*Defined in [FileFlatDb/types.ts:7](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/types.ts#L7)*
+*Defined in [FileFlatDb/types.ts:7](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/types.ts#L7)*
 
 ___
 <a id="empty"></a>
@@ -27,7 +27,7 @@ ___
 
 **EMPTY**:  = 0
 
-*Defined in [FileFlatDb/types.ts:6](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/types.ts#L6)*
+*Defined in [FileFlatDb/types.ts:6](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/types.ts#L6)*
 
 ___
 <a id="leaf"></a>
@@ -36,7 +36,7 @@ ___
 
 **LEAF**:  = 2
 
-*Defined in [FileFlatDb/types.ts:8](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/types.ts#L8)*
+*Defined in [FileFlatDb/types.ts:8](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/types.ts#L8)*
 
 ___
 
diff --git a/docs/db/modules/_fileflatdb_types_.md b/docs/db/modules/_fileflatdb_types_.md
index 9c7a10af9..cd7819f78 100644
--- a/docs/db/modules/_fileflatdb_types_.md
+++ b/docs/db/modules/_fileflatdb_types_.md
@@ -22,7 +22,7 @@
 
 **Ƭ Key**: *`object`*
 
-*Defined in [FileFlatDb/types.ts:16](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/types.ts#L16)*
+*Defined in [FileFlatDb/types.ts:16](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/types.ts#L16)*
 
 #### Type declaration
 
@@ -33,7 +33,7 @@ ___
 
 **Ƭ NibbleBuffer**: *`object`*
 
-*Defined in [FileFlatDb/types.ts:11](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/types.ts#L11)*
+*Defined in [FileFlatDb/types.ts:11](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/types.ts#L11)*
 
 #### Type declaration
 
@@ -44,7 +44,7 @@ ___
 
 **Ƭ Value**: *`object`*
 
-*Defined in [FileFlatDb/types.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/FileFlatDb/types.ts#L22)*
+*Defined in [FileFlatDb/types.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/FileFlatDb/types.ts#L22)*
 
 #### Type declaration
 
diff --git a/docs/examples/keyring/01_create_account/index.html b/docs/examples/keyring/01_create_account/index.html
index 14f11ffb3..e7e008a71 100644
--- a/docs/examples/keyring/01_create_account/index.html
+++ b/docs/examples/keyring/01_create_account/index.html
@@ -393,7 +393,7 @@
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"Create Account","level":"2.1.1","depth":2,"next":{"title":"Load Accounts","level":"2.1.2","depth":2,"path":"examples/keyring/02_load_accounts/README.md","ref":"examples/keyring/02_load_accounts/README.md","articles":[]},"previous":{"title":"Keyring","level":"2.1","depth":1,"path":"examples/keyring/README.md","ref":"examples/keyring/README.md","articles":[{"title":"Create Account","level":"2.1.1","depth":2,"path":"examples/keyring/01_create_account/README.md","ref":"examples/keyring/01_create_account/README.md","articles":[]},{"title":"Load Accounts","level":"2.1.2","depth":2,"path":"examples/keyring/02_load_accounts/README.md","ref":"examples/keyring/02_load_accounts/README.md","articles":[]}]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"examples/keyring/01_create_account/README.md","mtime":"2018-11-01T13:40:21.819Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-01T13:43:41.803Z"},"basePath":"../../..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"Create Account","level":"2.1.1","depth":2,"next":{"title":"Load Accounts","level":"2.1.2","depth":2,"path":"examples/keyring/02_load_accounts/README.md","ref":"examples/keyring/02_load_accounts/README.md","articles":[]},"previous":{"title":"Keyring","level":"2.1","depth":1,"path":"examples/keyring/README.md","ref":"examples/keyring/README.md","articles":[{"title":"Create Account","level":"2.1.1","depth":2,"path":"examples/keyring/01_create_account/README.md","ref":"examples/keyring/01_create_account/README.md","articles":[]},{"title":"Load Accounts","level":"2.1.2","depth":2,"path":"examples/keyring/02_load_accounts/README.md","ref":"examples/keyring/02_load_accounts/README.md","articles":[]}]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"examples/keyring/01_create_account/README.md","mtime":"2018-11-10T10:38:22.488Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-10T10:41:56.704Z"},"basePath":"../../..","book":{"language":""}});
         });
     </script>
 </div>
diff --git a/docs/examples/keyring/02_load_accounts/index.html b/docs/examples/keyring/02_load_accounts/index.html
index 6775f2816..6b933d558 100644
--- a/docs/examples/keyring/02_load_accounts/index.html
+++ b/docs/examples/keyring/02_load_accounts/index.html
@@ -405,7 +405,7 @@
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"Load Accounts","level":"2.1.2","depth":2,"next":{"title":"Util-Crypto","level":"2.2","depth":1,"path":"examples/util-crypto/README.md","ref":"examples/util-crypto/README.md","articles":[{"title":"Encrypt & Decrypt Message","level":"2.2.1","depth":2,"path":"examples/util-crypto/01_encrypt_decrypt_message_nacl/README.md","ref":"examples/util-crypto/01_encrypt_decrypt_message_nacl/README.md","articles":[]},{"title":"Sign & Verify Message","level":"2.2.2","depth":2,"path":"examples/util-crypto/02_sign_verify_message_nacl/README.md","ref":"examples/util-crypto/02_sign_verify_message_nacl/README.md","articles":[]},{"title":"Create & Validate Mnemonic","level":"2.2.3","depth":2,"path":"examples/util-crypto/03_mnemonic_generate_validate_bip39/README.md","ref":"examples/util-crypto/03_mnemonic_generate_validate_bip39/README.md","articles":[]}]},"previous":{"title":"Create Account","level":"2.1.1","depth":2,"path":"examples/keyring/01_create_account/README.md","ref":"examples/keyring/01_create_account/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"examples/keyring/02_load_accounts/README.md","mtime":"2018-11-01T13:40:21.819Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-01T13:43:41.803Z"},"basePath":"../../..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"Load Accounts","level":"2.1.2","depth":2,"next":{"title":"Util-Crypto","level":"2.2","depth":1,"path":"examples/util-crypto/README.md","ref":"examples/util-crypto/README.md","articles":[{"title":"Encrypt & Decrypt Message","level":"2.2.1","depth":2,"path":"examples/util-crypto/01_encrypt_decrypt_message_nacl/README.md","ref":"examples/util-crypto/01_encrypt_decrypt_message_nacl/README.md","articles":[]},{"title":"Sign & Verify Message","level":"2.2.2","depth":2,"path":"examples/util-crypto/02_sign_verify_message_nacl/README.md","ref":"examples/util-crypto/02_sign_verify_message_nacl/README.md","articles":[]},{"title":"Create & Validate Mnemonic","level":"2.2.3","depth":2,"path":"examples/util-crypto/03_mnemonic_generate_validate_bip39/README.md","ref":"examples/util-crypto/03_mnemonic_generate_validate_bip39/README.md","articles":[]}]},"previous":{"title":"Create Account","level":"2.1.1","depth":2,"path":"examples/keyring/01_create_account/README.md","ref":"examples/keyring/01_create_account/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"examples/keyring/02_load_accounts/README.md","mtime":"2018-11-10T10:38:22.488Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-10T10:41:56.704Z"},"basePath":"../../..","book":{"language":""}});
         });
     </script>
 </div>
diff --git a/docs/examples/keyring/index.html b/docs/examples/keyring/index.html
index ce17b1bd9..d502b036a 100644
--- a/docs/examples/keyring/index.html
+++ b/docs/examples/keyring/index.html
@@ -378,7 +378,7 @@ yarn&#xA0;start
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"Keyring","level":"2.1","depth":1,"next":{"title":"Create Account","level":"2.1.1","depth":2,"path":"examples/keyring/01_create_account/README.md","ref":"examples/keyring/01_create_account/README.md","articles":[]},"previous":{"title":"util-crypto","level":"1.6","depth":1,"path":"util-crypto/README.md","ref":"util-crypto/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"examples/keyring/README.md","mtime":"2018-11-01T13:40:21.819Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-01T13:43:41.803Z"},"basePath":"../..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"Keyring","level":"2.1","depth":1,"next":{"title":"Create Account","level":"2.1.1","depth":2,"path":"examples/keyring/01_create_account/README.md","ref":"examples/keyring/01_create_account/README.md","articles":[]},"previous":{"title":"util-crypto","level":"1.6","depth":1,"path":"util-crypto/README.md","ref":"util-crypto/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"examples/keyring/README.md","mtime":"2018-11-10T10:38:22.488Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-10T10:41:56.704Z"},"basePath":"../..","book":{"language":""}});
         });
     </script>
 </div>
diff --git a/docs/examples/util-crypto/01_encrypt_decrypt_message_nacl/index.html b/docs/examples/util-crypto/01_encrypt_decrypt_message_nacl/index.html
index fa1126b7b..00c5541ed 100644
--- a/docs/examples/util-crypto/01_encrypt_decrypt_message_nacl/index.html
+++ b/docs/examples/util-crypto/01_encrypt_decrypt_message_nacl/index.html
@@ -398,7 +398,7 @@
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"Encrypt & Decrypt Message","level":"2.2.1","depth":2,"next":{"title":"Sign & Verify Message","level":"2.2.2","depth":2,"path":"examples/util-crypto/02_sign_verify_message_nacl/README.md","ref":"examples/util-crypto/02_sign_verify_message_nacl/README.md","articles":[]},"previous":{"title":"Util-Crypto","level":"2.2","depth":1,"path":"examples/util-crypto/README.md","ref":"examples/util-crypto/README.md","articles":[{"title":"Encrypt & Decrypt Message","level":"2.2.1","depth":2,"path":"examples/util-crypto/01_encrypt_decrypt_message_nacl/README.md","ref":"examples/util-crypto/01_encrypt_decrypt_message_nacl/README.md","articles":[]},{"title":"Sign & Verify Message","level":"2.2.2","depth":2,"path":"examples/util-crypto/02_sign_verify_message_nacl/README.md","ref":"examples/util-crypto/02_sign_verify_message_nacl/README.md","articles":[]},{"title":"Create & Validate Mnemonic","level":"2.2.3","depth":2,"path":"examples/util-crypto/03_mnemonic_generate_validate_bip39/README.md","ref":"examples/util-crypto/03_mnemonic_generate_validate_bip39/README.md","articles":[]}]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"examples/util-crypto/01_encrypt_decrypt_message_nacl/README.md","mtime":"2018-11-01T13:40:21.819Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-01T13:43:41.803Z"},"basePath":"../../..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"Encrypt & Decrypt Message","level":"2.2.1","depth":2,"next":{"title":"Sign & Verify Message","level":"2.2.2","depth":2,"path":"examples/util-crypto/02_sign_verify_message_nacl/README.md","ref":"examples/util-crypto/02_sign_verify_message_nacl/README.md","articles":[]},"previous":{"title":"Util-Crypto","level":"2.2","depth":1,"path":"examples/util-crypto/README.md","ref":"examples/util-crypto/README.md","articles":[{"title":"Encrypt & Decrypt Message","level":"2.2.1","depth":2,"path":"examples/util-crypto/01_encrypt_decrypt_message_nacl/README.md","ref":"examples/util-crypto/01_encrypt_decrypt_message_nacl/README.md","articles":[]},{"title":"Sign & Verify Message","level":"2.2.2","depth":2,"path":"examples/util-crypto/02_sign_verify_message_nacl/README.md","ref":"examples/util-crypto/02_sign_verify_message_nacl/README.md","articles":[]},{"title":"Create & Validate Mnemonic","level":"2.2.3","depth":2,"path":"examples/util-crypto/03_mnemonic_generate_validate_bip39/README.md","ref":"examples/util-crypto/03_mnemonic_generate_validate_bip39/README.md","articles":[]}]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"examples/util-crypto/01_encrypt_decrypt_message_nacl/README.md","mtime":"2018-11-10T10:38:22.492Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-10T10:41:56.704Z"},"basePath":"../../..","book":{"language":""}});
         });
     </script>
 </div>
diff --git a/docs/examples/util-crypto/02_sign_verify_message_nacl/index.html b/docs/examples/util-crypto/02_sign_verify_message_nacl/index.html
index 686948cf1..e0dd230dc 100644
--- a/docs/examples/util-crypto/02_sign_verify_message_nacl/index.html
+++ b/docs/examples/util-crypto/02_sign_verify_message_nacl/index.html
@@ -406,7 +406,7 @@
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"Sign & Verify Message","level":"2.2.2","depth":2,"next":{"title":"Create & Validate Mnemonic","level":"2.2.3","depth":2,"path":"examples/util-crypto/03_mnemonic_generate_validate_bip39/README.md","ref":"examples/util-crypto/03_mnemonic_generate_validate_bip39/README.md","articles":[]},"previous":{"title":"Encrypt & Decrypt Message","level":"2.2.1","depth":2,"path":"examples/util-crypto/01_encrypt_decrypt_message_nacl/README.md","ref":"examples/util-crypto/01_encrypt_decrypt_message_nacl/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"examples/util-crypto/02_sign_verify_message_nacl/README.md","mtime":"2018-11-01T13:40:21.819Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-01T13:43:41.803Z"},"basePath":"../../..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"Sign & Verify Message","level":"2.2.2","depth":2,"next":{"title":"Create & Validate Mnemonic","level":"2.2.3","depth":2,"path":"examples/util-crypto/03_mnemonic_generate_validate_bip39/README.md","ref":"examples/util-crypto/03_mnemonic_generate_validate_bip39/README.md","articles":[]},"previous":{"title":"Encrypt & Decrypt Message","level":"2.2.1","depth":2,"path":"examples/util-crypto/01_encrypt_decrypt_message_nacl/README.md","ref":"examples/util-crypto/01_encrypt_decrypt_message_nacl/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"examples/util-crypto/02_sign_verify_message_nacl/README.md","mtime":"2018-11-10T10:38:22.492Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-10T10:41:56.704Z"},"basePath":"../../..","book":{"language":""}});
         });
     </script>
 </div>
diff --git a/docs/examples/util-crypto/03_mnemonic_generate_validate_bip39/index.html b/docs/examples/util-crypto/03_mnemonic_generate_validate_bip39/index.html
index 19f05b7cc..1a36cdc71 100644
--- a/docs/examples/util-crypto/03_mnemonic_generate_validate_bip39/index.html
+++ b/docs/examples/util-crypto/03_mnemonic_generate_validate_bip39/index.html
@@ -394,7 +394,7 @@
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"Create & Validate Mnemonic","level":"2.2.3","depth":2,"previous":{"title":"Sign & Verify Message","level":"2.2.2","depth":2,"path":"examples/util-crypto/02_sign_verify_message_nacl/README.md","ref":"examples/util-crypto/02_sign_verify_message_nacl/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"examples/util-crypto/03_mnemonic_generate_validate_bip39/README.md","mtime":"2018-11-01T13:40:21.819Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-01T13:43:41.803Z"},"basePath":"../../..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"Create & Validate Mnemonic","level":"2.2.3","depth":2,"previous":{"title":"Sign & Verify Message","level":"2.2.2","depth":2,"path":"examples/util-crypto/02_sign_verify_message_nacl/README.md","ref":"examples/util-crypto/02_sign_verify_message_nacl/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"examples/util-crypto/03_mnemonic_generate_validate_bip39/README.md","mtime":"2018-11-10T10:38:22.492Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-10T10:41:56.704Z"},"basePath":"../../..","book":{"language":""}});
         });
     </script>
 </div>
diff --git a/docs/examples/util-crypto/index.html b/docs/examples/util-crypto/index.html
index 27a36bf65..49c4bb3c4 100644
--- a/docs/examples/util-crypto/index.html
+++ b/docs/examples/util-crypto/index.html
@@ -378,7 +378,7 @@ yarn&#xA0;start
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"Util-Crypto","level":"2.2","depth":1,"next":{"title":"Encrypt & Decrypt Message","level":"2.2.1","depth":2,"path":"examples/util-crypto/01_encrypt_decrypt_message_nacl/README.md","ref":"examples/util-crypto/01_encrypt_decrypt_message_nacl/README.md","articles":[]},"previous":{"title":"Load Accounts","level":"2.1.2","depth":2,"path":"examples/keyring/02_load_accounts/README.md","ref":"examples/keyring/02_load_accounts/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"examples/util-crypto/README.md","mtime":"2018-11-01T13:40:21.819Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-01T13:43:41.803Z"},"basePath":"../..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"Util-Crypto","level":"2.2","depth":1,"next":{"title":"Encrypt & Decrypt Message","level":"2.2.1","depth":2,"path":"examples/util-crypto/01_encrypt_decrypt_message_nacl/README.md","ref":"examples/util-crypto/01_encrypt_decrypt_message_nacl/README.md","articles":[]},"previous":{"title":"Load Accounts","level":"2.1.2","depth":2,"path":"examples/keyring/02_load_accounts/README.md","ref":"examples/keyring/02_load_accounts/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"examples/util-crypto/README.md","mtime":"2018-11-10T10:38:22.492Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-10T10:41:56.704Z"},"basePath":"../..","book":{"language":""}});
         });
     </script>
 </div>
diff --git a/docs/index.html b/docs/index.html
index 84836261c..b13d287cc 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -415,7 +415,7 @@
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"Introduction","level":"1.1","depth":1,"next":{"title":"keyring","level":"1.2","depth":1,"path":"keyring/README.md","ref":"keyring/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"README.md","mtime":"2018-11-01T13:40:21.815Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-01T13:43:41.803Z"},"basePath":".","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"Introduction","level":"1.1","depth":1,"next":{"title":"keyring","level":"1.2","depth":1,"path":"keyring/README.md","ref":"keyring/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"README.md","mtime":"2018-11-10T10:38:22.488Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-10T10:41:56.704Z"},"basePath":".","book":{"language":""}});
         });
     </script>
 </div>
diff --git a/docs/keyring/classes/_index_.keyring.md b/docs/keyring/classes/_index_.keyring.md
index c521ad160..ef61f1d53 100644
--- a/docs/keyring/classes/_index_.keyring.md
+++ b/docs/keyring/classes/_index_.keyring.md
@@ -29,7 +29,7 @@ Overview
 
 ⊕ **new Keyring**(): [Keyring](_index_.keyring.md)
 
-*Defined in [index.ts:33](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/index.ts#L33)*
+*Defined in [index.ts:33](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/index.ts#L33)*
 
 **Returns:** [Keyring](_index_.keyring.md)
 
@@ -43,7 +43,7 @@ ___
 
 ▸ **addFromAddress**(address: * `string` &#124; `Uint8Array`*, meta?: *`KeyringPair$Meta`*, defaultEncoded?: *`Uint8Array`*): `KeyringPair`
 
-*Defined in [index.ts:57](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/index.ts#L57)*
+*Defined in [index.ts:57](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/index.ts#L57)*
 
 *__name__*: addFromAddress
 
@@ -70,7 +70,7 @@ ___
 
 ▸ **addFromJson**(__namedParameters: *`object`*): `KeyringPair`
 
-*Defined in [index.ts:72](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/index.ts#L72)*
+*Defined in [index.ts:72](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/index.ts#L72)*
 
 *__name__*: addFromJson
 
@@ -97,7 +97,7 @@ ___
 
 ▸ **addFromMnemonic**(mnemonic: *`string`*, meta?: *`KeyringPair$Meta`*): `KeyringPair`
 
-*Defined in [index.ts:85](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/index.ts#L85)*
+*Defined in [index.ts:85](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/index.ts#L85)*
 
 *__name__*: addFromMnemonic
 
@@ -123,7 +123,7 @@ ___
 
 ▸ **addFromSeed**(seed: *`Uint8Array`*, meta?: *`KeyringPair$Meta`*): `KeyringPair`
 
-*Defined in [index.ts:114](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/index.ts#L114)*
+*Defined in [index.ts:114](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/index.ts#L114)*
 
 *__name__*: addFromSeed
 
@@ -166,7 +166,7 @@ ___
 
 ▸ **addPair**(pair: *`KeyringPair`*): `KeyringPair`
 
-*Defined in [index.ts:44](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/index.ts#L44)*
+*Defined in [index.ts:44](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/index.ts#L44)*
 
 *__name__*: addPair
 
@@ -189,7 +189,7 @@ ___
 
 ▸ **getPair**(address: * `string` &#124; `Uint8Array`*): `KeyringPair`
 
-*Defined in [index.ts:150](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/index.ts#L150)*
+*Defined in [index.ts:150](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/index.ts#L150)*
 
 *__name__*: getPair
 
@@ -239,7 +239,7 @@ ___
 
 ▸ **getPairs**(): `Array`<`KeyringPair`>
 
-*Defined in [index.ts:182](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/index.ts#L182)*
+*Defined in [index.ts:182](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/index.ts#L182)*
 
 *__name__*: getPairs
 
@@ -280,7 +280,7 @@ ___
 
 ▸ **getPublicKeys**(): `Array`<`Uint8Array`>
 
-*Defined in [index.ts:192](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/index.ts#L192)*
+*Defined in [index.ts:192](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/index.ts#L192)*
 
 *__name__*: getPublicKeys
 
@@ -299,7 +299,7 @@ ___
 
 ▸ **removePair**(address: * `string` &#124; `Uint8Array`*): `void`
 
-*Defined in [index.ts:207](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/index.ts#L207)*
+*Defined in [index.ts:207](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/index.ts#L207)*
 
 *__name__*: removePair
 
@@ -324,7 +324,7 @@ ___
 
 ▸ **toJson**(address: * `string` &#124; `Uint8Array`*, passphrase?: * `undefined` &#124; `string`*): `KeyringPair$Json`
 
-*Defined in [index.ts:222](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/index.ts#L222)*
+*Defined in [index.ts:222](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/index.ts#L222)*
 
 *__name__*: toJson
 
diff --git a/docs/keyring/classes/_pairs_.pairs.md b/docs/keyring/classes/_pairs_.pairs.md
index 4d35f0fb5..81438ac42 100644
--- a/docs/keyring/classes/_pairs_.pairs.md
+++ b/docs/keyring/classes/_pairs_.pairs.md
@@ -16,7 +16,7 @@
 
 ⊕ **new Pairs**(): [Pairs](_pairs_.pairs.md)
 
-*Defined in [pairs.ts:17](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/pairs.ts#L17)*
+*Defined in [pairs.ts:17](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/pairs.ts#L17)*
 
 **Returns:** [Pairs](_pairs_.pairs.md)
 
@@ -30,7 +30,7 @@ ___
 
 ▸ **add**(pair: *`KeyringPair`*): `KeyringPair`
 
-*Defined in [pairs.ts:23](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/pairs.ts#L23)*
+*Defined in [pairs.ts:23](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/pairs.ts#L23)*
 
 **Parameters:**
 
@@ -47,7 +47,7 @@ ___
 
 ▸ **all**(): `Array`<`KeyringPair`>
 
-*Defined in [pairs.ts:30](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/pairs.ts#L30)*
+*Defined in [pairs.ts:30](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/pairs.ts#L30)*
 
 **Returns:** `Array`<`KeyringPair`>
 
@@ -58,7 +58,7 @@ ___
 
 ▸ **get**(address: * `string` &#124; `Uint8Array`*): `KeyringPair`
 
-*Defined in [pairs.ts:34](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/pairs.ts#L34)*
+*Defined in [pairs.ts:34](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/pairs.ts#L34)*
 
 **Parameters:**
 
@@ -75,7 +75,7 @@ ___
 
 ▸ **remove**(address: * `string` &#124; `Uint8Array`*): `void`
 
-*Defined in [pairs.ts:49](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/pairs.ts#L49)*
+*Defined in [pairs.ts:49](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/pairs.ts#L49)*
 
 **Parameters:**
 
diff --git a/docs/keyring/index.html b/docs/keyring/index.html
index 014c227c4..4a0c64d1a 100644
--- a/docs/keyring/index.html
+++ b/docs/keyring/index.html
@@ -397,7 +397,7 @@
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"keyring","level":"1.2","depth":1,"next":{"title":"trie-db","level":"1.3","depth":1,"path":"trie-db/README.md","ref":"trie-db/README.md","articles":[]},"previous":{"title":"Introduction","level":"1.1","depth":1,"path":"README.md","ref":"README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"keyring/README.md","mtime":"2018-11-01T13:42:38.135Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-01T13:43:41.803Z"},"basePath":"..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"keyring","level":"1.2","depth":1,"next":{"title":"trie-db","level":"1.3","depth":1,"path":"trie-db/README.md","ref":"trie-db/README.md","articles":[]},"previous":{"title":"Introduction","level":"1.1","depth":1,"path":"README.md","ref":"README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"keyring/README.md","mtime":"2018-11-10T10:40:48.591Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-10T10:41:56.704Z"},"basePath":"..","book":{"language":""}});
         });
     </script>
 </div>
diff --git a/docs/keyring/modules/_address_decode_.md b/docs/keyring/modules/_address_decode_.md
index 6ed752c5d..b9da08763 100644
--- a/docs/keyring/modules/_address_decode_.md
+++ b/docs/keyring/modules/_address_decode_.md
@@ -8,7 +8,7 @@
 
 ▸ **decode**(encoded: * `string` &#124; `Uint8Array`*, prefix?: *`Prefix`*): `Uint8Array`
 
-*Defined in [address/decode.ts:15](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/address/decode.ts#L15)*
+*Defined in [address/decode.ts:15](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/address/decode.ts#L15)*
 
 **Parameters:**
 
diff --git a/docs/keyring/modules/_address_encode_.md b/docs/keyring/modules/_address_encode_.md
index 6d10d3749..cb2a6a365 100644
--- a/docs/keyring/modules/_address_encode_.md
+++ b/docs/keyring/modules/_address_encode_.md
@@ -8,7 +8,7 @@
 
 ▸ **encode**(_key: * `Uint8Array` &#124; `string`*, prefix?: *`Prefix`*): `string`
 
-*Defined in [address/encode.ts:15](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/address/encode.ts#L15)*
+*Defined in [address/encode.ts:15](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/address/encode.ts#L15)*
 
 **Parameters:**
 
diff --git a/docs/keyring/modules/_address_setprefix_.md b/docs/keyring/modules/_address_setprefix_.md
index 15b38be56..d3376736a 100644
--- a/docs/keyring/modules/_address_setprefix_.md
+++ b/docs/keyring/modules/_address_setprefix_.md
@@ -8,7 +8,7 @@
 
 ▸ **setPrefix**(prefix: *`Prefix`*): `void`
 
-*Defined in [address/setPrefix.ts:9](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/address/setPrefix.ts#L9)*
+*Defined in [address/setPrefix.ts:9](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/address/setPrefix.ts#L9)*
 
 **Parameters:**
 
diff --git a/docs/keyring/modules/_pair_decode_.md b/docs/keyring/modules/_pair_decode_.md
index aa4620fcd..78c261197 100644
--- a/docs/keyring/modules/_pair_decode_.md
+++ b/docs/keyring/modules/_pair_decode_.md
@@ -8,7 +8,7 @@
 
 ▸ **decode**(passphrase?: * `undefined` &#124; `string`*, _encrypted?: *`Uint8Array`*): `object`
 
-*Defined in [pair/decode.ts:15](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/pair/decode.ts#L15)*
+*Defined in [pair/decode.ts:15](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/pair/decode.ts#L15)*
 
 **Parameters:**
 
diff --git a/docs/keyring/modules/_pair_encode_.md b/docs/keyring/modules/_pair_encode_.md
index 5e72bdf28..dd99d5671 100644
--- a/docs/keyring/modules/_pair_encode_.md
+++ b/docs/keyring/modules/_pair_encode_.md
@@ -8,7 +8,7 @@
 
 ▸ **encode**(secretKey: *`Uint8Array`*, passphrase?: * `undefined` &#124; `string`*): `Uint8Array`
 
-*Defined in [pair/encode.ts:10](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/pair/encode.ts#L10)*
+*Defined in [pair/encode.ts:10](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/pair/encode.ts#L10)*
 
 **Parameters:**
 
diff --git a/docs/keyring/modules/_pair_getmeta_.md b/docs/keyring/modules/_pair_getmeta_.md
index 4b280939f..b19bc04d3 100644
--- a/docs/keyring/modules/_pair_getmeta_.md
+++ b/docs/keyring/modules/_pair_getmeta_.md
@@ -8,7 +8,7 @@
 
 ▸ **getMeta**(state: *`PairState`*): `KeyringPair$Meta`
 
-*Defined in [pair/getMeta.ts:8](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/pair/getMeta.ts#L8)*
+*Defined in [pair/getMeta.ts:8](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/pair/getMeta.ts#L8)*
 
 **Parameters:**
 
diff --git a/docs/keyring/modules/_pair_index_.md b/docs/keyring/modules/_pair_index_.md
index b15d1af76..4d17f32f6 100644
--- a/docs/keyring/modules/_pair_index_.md
+++ b/docs/keyring/modules/_pair_index_.md
@@ -8,7 +8,7 @@
 
 ▸ **pair**(__namedParameters: *`object`*, meta?: *`KeyringPair$Meta`*, defaultEncoded?: *`Uint8Array`*): `KeyringPair`
 
-*Defined in [pair/index.ts:50](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/pair/index.ts#L50)*
+*Defined in [pair/index.ts:50](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/pair/index.ts#L50)*
 
 *__name__*: pair
 
diff --git a/docs/keyring/modules/_pair_nobody_.md b/docs/keyring/modules/_pair_nobody_.md
index 14767d1c3..327fd4387 100644
--- a/docs/keyring/modules/_pair_nobody_.md
+++ b/docs/keyring/modules/_pair_nobody_.md
@@ -8,7 +8,7 @@
 
 ▸ **everybody**(): `KeyringPair`
 
-*Defined in [pair/nobody.ts:25](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/pair/nobody.ts#L25)*
+*Defined in [pair/nobody.ts:25](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/pair/nobody.ts#L25)*
 
 **Returns:** `KeyringPair`
 
diff --git a/docs/keyring/modules/_pair_setmeta_.md b/docs/keyring/modules/_pair_setmeta_.md
index dd025632c..38f2ef542 100644
--- a/docs/keyring/modules/_pair_setmeta_.md
+++ b/docs/keyring/modules/_pair_setmeta_.md
@@ -8,7 +8,7 @@
 
 ▸ **setMeta**(state: *`PairState`*, meta: *`KeyringPair$Meta`*): `void`
 
-*Defined in [pair/setMeta.ts:8](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/pair/setMeta.ts#L8)*
+*Defined in [pair/setMeta.ts:8](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/pair/setMeta.ts#L8)*
 
 **Parameters:**
 
diff --git a/docs/keyring/modules/_pair_tojson_.md b/docs/keyring/modules/_pair_tojson_.md
index 76b5b946a..7611f3270 100644
--- a/docs/keyring/modules/_pair_tojson_.md
+++ b/docs/keyring/modules/_pair_tojson_.md
@@ -8,7 +8,7 @@
 
 ▸ **toJson**(__namedParameters: *`object`*, encoded: *`Uint8Array`*, isEncrypted: *`boolean`*): `KeyringPair$Json`
 
-*Defined in [pair/toJson.ts:10](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/pair/toJson.ts#L10)*
+*Defined in [pair/toJson.ts:10](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/pair/toJson.ts#L10)*
 
 **Parameters:**
 
diff --git a/docs/keyring/modules/_testing_.md b/docs/keyring/modules/_testing_.md
index 6ecd43a60..d9cb466c3 100644
--- a/docs/keyring/modules/_testing_.md
+++ b/docs/keyring/modules/_testing_.md
@@ -8,7 +8,7 @@
 
 ▸ **testKeyring**(): `KeyringInstance`
 
-*Defined in [testing.ts:57](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/testing.ts#L57)*
+*Defined in [testing.ts:57](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/testing.ts#L57)*
 
 *__name__*: testKeyring
 
diff --git a/docs/keyring/modules/_testingpairs_.md b/docs/keyring/modules/_testingpairs_.md
index 20fcc00cf..b5f2aa011 100644
--- a/docs/keyring/modules/_testingpairs_.md
+++ b/docs/keyring/modules/_testingpairs_.md
@@ -8,7 +8,7 @@
 
 ▸ **testKeyringPairs**(): `TestKeyringMap`
 
-*Defined in [testingPairs.ts:14](https://github.com/polkadot-js/common/blob/0ddac0a/packages/keyring/src/testingPairs.ts#L14)*
+*Defined in [testingPairs.ts:14](https://github.com/polkadot-js/common/blob/a9878a2/packages/keyring/src/testingPairs.ts#L14)*
 
 **Returns:** `TestKeyringMap`
 
diff --git a/docs/trie-db/classes/_index_.trie.md b/docs/trie-db/classes/_index_.trie.md
index dc142199f..7cb8bf5ce 100644
--- a/docs/trie-db/classes/_index_.trie.md
+++ b/docs/trie-db/classes/_index_.trie.md
@@ -27,7 +27,7 @@ Overview
 
 ⊕ **new Trie**(db?: *`TxDb`*, rootHash?: *`Uint8Array`*): [Trie](_index_.trie.md)
 
-*Defined in [index.ts:33](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/index.ts#L33)*
+*Defined in [index.ts:33](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/index.ts#L33)*
 
 **Parameters:**
 
@@ -50,7 +50,7 @@ ___
 
 *Implementation of [TrieDb](../interfaces/_types_.triedb.md).[db](../interfaces/_types_.triedb.md#db)*
 
-*Defined in [index.ts:31](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/index.ts#L31)*
+*Defined in [index.ts:31](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/index.ts#L31)*
 
 ___
 
@@ -64,7 +64,7 @@ ___
 
 *Implementation of [TrieDb](../interfaces/_types_.triedb.md).[close](../interfaces/_types_.triedb.md#close)*
 
-*Defined in [index.ts:81](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/index.ts#L81)*
+*Defined in [index.ts:81](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/index.ts#L81)*
 
 **Returns:** `void`
 
@@ -77,7 +77,7 @@ ___
 
 *Implementation of [TrieDb](../interfaces/_types_.triedb.md).[del](../interfaces/_types_.triedb.md#del)*
 
-*Defined in [index.ts:105](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/index.ts#L105)*
+*Defined in [index.ts:105](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/index.ts#L105)*
 
 **Parameters:**
 
@@ -96,7 +96,7 @@ ___
 
 *Implementation of [TrieDb](../interfaces/_types_.triedb.md).[drop](../interfaces/_types_.triedb.md#drop)*
 
-*Defined in [index.ts:89](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/index.ts#L89)*
+*Defined in [index.ts:89](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/index.ts#L89)*
 
 **Returns:** `void`
 
@@ -109,7 +109,7 @@ ___
 
 *Implementation of [TrieDb](../interfaces/_types_.triedb.md).[empty](../interfaces/_types_.triedb.md#empty)*
 
-*Defined in [index.ts:85](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/index.ts#L85)*
+*Defined in [index.ts:85](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/index.ts#L85)*
 
 **Returns:** `void`
 
@@ -122,7 +122,7 @@ ___
 
 *Implementation of [TrieDb](../interfaces/_types_.triedb.md).[get](../interfaces/_types_.triedb.md#get)*
 
-*Defined in [index.ts:116](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/index.ts#L116)*
+*Defined in [index.ts:116](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/index.ts#L116)*
 
 **Parameters:**
 
@@ -139,7 +139,7 @@ ___
 
 ▸ **getNode**(hash?: *`Uint8Array`*): [Node](../modules/_types_.md#node)
 
-*Defined in [index.ts:147](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/index.ts#L147)*
+*Defined in [index.ts:147](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/index.ts#L147)*
 
 **Parameters:**
 
@@ -158,7 +158,7 @@ ___
 
 *Implementation of [TrieDb](../interfaces/_types_.triedb.md).[getRoot](../interfaces/_types_.triedb.md#getroot)*
 
-*Defined in [index.ts:137](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/index.ts#L137)*
+*Defined in [index.ts:137](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/index.ts#L137)*
 
 **Returns:** `Uint8Array`
 
@@ -171,7 +171,7 @@ ___
 
 *Implementation of [TrieDb](../interfaces/_types_.triedb.md).[maintain](../interfaces/_types_.triedb.md#maintain)*
 
-*Defined in [index.ts:93](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/index.ts#L93)*
+*Defined in [index.ts:93](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/index.ts#L93)*
 
 **Parameters:**
 
@@ -190,7 +190,7 @@ ___
 
 *Implementation of [TrieDb](../interfaces/_types_.triedb.md).[open](../interfaces/_types_.triedb.md#open)*
 
-*Defined in [index.ts:77](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/index.ts#L77)*
+*Defined in [index.ts:77](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/index.ts#L77)*
 
 **Returns:** `void`
 
@@ -203,7 +203,7 @@ ___
 
 *Implementation of [TrieDb](../interfaces/_types_.triedb.md).[put](../interfaces/_types_.triedb.md#put)*
 
-*Defined in [index.ts:125](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/index.ts#L125)*
+*Defined in [index.ts:125](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/index.ts#L125)*
 
 **Parameters:**
 
@@ -223,7 +223,7 @@ ___
 
 *Implementation of [TrieDb](../interfaces/_types_.triedb.md).[rename](../interfaces/_types_.triedb.md#rename)*
 
-*Defined in [index.ts:97](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/index.ts#L97)*
+*Defined in [index.ts:97](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/index.ts#L97)*
 
 **Parameters:**
 
@@ -243,7 +243,7 @@ ___
 
 *Implementation of [TrieDb](../interfaces/_types_.triedb.md).[setRoot](../interfaces/_types_.triedb.md#setroot)*
 
-*Defined in [index.ts:151](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/index.ts#L151)*
+*Defined in [index.ts:151](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/index.ts#L151)*
 
 **Parameters:**
 
@@ -262,7 +262,7 @@ ___
 
 *Implementation of [TrieDb](../interfaces/_types_.triedb.md).[size](../interfaces/_types_.triedb.md#size)*
 
-*Defined in [index.ts:101](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/index.ts#L101)*
+*Defined in [index.ts:101](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/index.ts#L101)*
 
 **Returns:** `number`
 
@@ -275,7 +275,7 @@ ___
 
 *Implementation of [TrieDb](../interfaces/_types_.triedb.md).[snapshot](../interfaces/_types_.triedb.md#snapshot)*
 
-*Defined in [index.ts:156](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/index.ts#L156)*
+*Defined in [index.ts:156](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/index.ts#L156)*
 
 **Parameters:**
 
@@ -293,7 +293,7 @@ ___
 
 ▸ **transaction**(fn: *`function`*): `boolean`
 
-*Defined in [index.ts:57](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/index.ts#L57)*
+*Defined in [index.ts:57](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/index.ts#L57)*
 
 **Parameters:**
 
diff --git a/docs/trie-db/enums/_types_.nodetype.md b/docs/trie-db/enums/_types_.nodetype.md
index 061ba827a..341dab099 100644
--- a/docs/trie-db/enums/_types_.nodetype.md
+++ b/docs/trie-db/enums/_types_.nodetype.md
@@ -19,7 +19,7 @@
 
 **BRANCH**:  = 3
 
-*Defined in [types.ts:11](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/types.ts#L11)*
+*Defined in [types.ts:11](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/types.ts#L11)*
 
 ___
 <a id="empty"></a>
@@ -28,7 +28,7 @@ ___
 
 **EMPTY**:  = 0
 
-*Defined in [types.ts:8](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/types.ts#L8)*
+*Defined in [types.ts:8](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/types.ts#L8)*
 
 ___
 <a id="extension"></a>
@@ -37,7 +37,7 @@ ___
 
 **EXTENSION**:  = 2
 
-*Defined in [types.ts:10](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/types.ts#L10)*
+*Defined in [types.ts:10](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/types.ts#L10)*
 
 ___
 <a id="leaf"></a>
@@ -46,7 +46,7 @@ ___
 
 **LEAF**:  = 1
 
-*Defined in [types.ts:9](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/types.ts#L9)*
+*Defined in [types.ts:9](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/types.ts#L9)*
 
 ___
 
diff --git a/docs/trie-db/index.html b/docs/trie-db/index.html
index 45dcf595f..6c09ef0da 100644
--- a/docs/trie-db/index.html
+++ b/docs/trie-db/index.html
@@ -401,7 +401,7 @@
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"trie-db","level":"1.3","depth":1,"next":{"title":"trie-hash","level":"1.4","depth":1,"path":"trie-hash/README.md","ref":"trie-hash/README.md","articles":[]},"previous":{"title":"keyring","level":"1.2","depth":1,"path":"keyring/README.md","ref":"keyring/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"trie-db/README.md","mtime":"2018-11-01T13:42:45.535Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-01T13:43:41.803Z"},"basePath":"..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"trie-db","level":"1.3","depth":1,"next":{"title":"trie-hash","level":"1.4","depth":1,"path":"trie-hash/README.md","ref":"trie-hash/README.md","articles":[]},"previous":{"title":"keyring","level":"1.2","depth":1,"path":"keyring/README.md","ref":"keyring/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"trie-db/README.md","mtime":"2018-11-10T10:40:56.503Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-10T10:41:56.704Z"},"basePath":"..","book":{"language":""}});
         });
     </script>
 </div>
diff --git a/docs/trie-db/interfaces/_types_.triedb.md b/docs/trie-db/interfaces/_types_.triedb.md
index a117362c8..ea38298c6 100644
--- a/docs/trie-db/interfaces/_types_.triedb.md
+++ b/docs/trie-db/interfaces/_types_.triedb.md
@@ -18,7 +18,7 @@
 
 **● db**: *`TxDb`*
 
-*Defined in [types.ts:37](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/types.ts#L37)*
+*Defined in [types.ts:37](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/types.ts#L37)*
 
 ___
 
@@ -32,7 +32,7 @@ ___
 
 *Inherited from BaseDb.close*
 
-*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:18](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/types.d.ts#L18)*
+*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:18](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/types.d.ts#L18)*
 
 **Returns:** `void`
 
@@ -45,7 +45,7 @@ ___
 
 *Inherited from BaseDb.del*
 
-*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:26](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/types.d.ts#L26)*
+*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:26](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/types.d.ts#L26)*
 
 **Parameters:**
 
@@ -64,7 +64,7 @@ ___
 
 *Inherited from BaseDb.drop*
 
-*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:20](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/types.d.ts#L20)*
+*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:20](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/types.d.ts#L20)*
 
 **Returns:** `void`
 
@@ -77,7 +77,7 @@ ___
 
 *Inherited from BaseDb.empty*
 
-*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:21](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/types.d.ts#L21)*
+*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:21](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/types.d.ts#L21)*
 
 **Returns:** `void`
 
@@ -90,7 +90,7 @@ ___
 
 *Inherited from BaseDb.get*
 
-*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:27](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/types.d.ts#L27)*
+*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:27](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/types.d.ts#L27)*
 
 **Parameters:**
 
@@ -107,7 +107,7 @@ ___
 
 ▸ **getRoot**(): `Uint8Array`
 
-*Defined in [types.ts:39](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/types.ts#L39)*
+*Defined in [types.ts:39](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/types.ts#L39)*
 
 **Returns:** `Uint8Array`
 
@@ -120,7 +120,7 @@ ___
 
 *Inherited from BaseDb.maintain*
 
-*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/types.d.ts#L22)*
+*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/types.d.ts#L22)*
 
 **Parameters:**
 
@@ -139,7 +139,7 @@ ___
 
 *Inherited from BaseDb.open*
 
-*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:19](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/types.d.ts#L19)*
+*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:19](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/types.d.ts#L19)*
 
 **Returns:** `void`
 
@@ -152,7 +152,7 @@ ___
 
 *Inherited from BaseDb.put*
 
-*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:28](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/types.d.ts#L28)*
+*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:28](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/types.d.ts#L28)*
 
 **Parameters:**
 
@@ -172,7 +172,7 @@ ___
 
 *Inherited from BaseDb.rename*
 
-*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:23](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/types.d.ts#L23)*
+*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:23](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/types.d.ts#L23)*
 
 **Parameters:**
 
@@ -190,7 +190,7 @@ ___
 
 ▸ **setRoot**(rootHash: *`Uint8Array`*): `void`
 
-*Defined in [types.ts:40](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/types.ts#L40)*
+*Defined in [types.ts:40](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/types.ts#L40)*
 
 **Parameters:**
 
@@ -209,7 +209,7 @@ ___
 
 *Inherited from BaseDb.size*
 
-*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/types.d.ts#L24)*
+*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/types.d.ts#L24)*
 
 **Returns:** `number`
 
@@ -220,7 +220,7 @@ ___
 
 ▸ **snapshot**(dest: *[TrieDb](_types_.triedb.md)*, fn: *`ProgressCb`*): `number`
 
-*Defined in [types.ts:41](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/types.ts#L41)*
+*Defined in [types.ts:41](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/types.ts#L41)*
 
 **Parameters:**
 
@@ -240,7 +240,7 @@ ___
 
 *Inherited from TxDb.transaction*
 
-*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:32](https://github.com/polkadot-js/common/blob/0ddac0a/packages/db/src/types.d.ts#L32)*
+*Defined in [/home/travis/build/polkadot-js/common/packages/db/src/types.d.ts:32](https://github.com/polkadot-js/common/blob/a9878a2/packages/db/src/types.d.ts#L32)*
 
 **Parameters:**
 
diff --git a/docs/trie-db/modules/_types_.md b/docs/trie-db/modules/_types_.md
index 761623bde..35ff17396 100644
--- a/docs/trie-db/modules/_types_.md
+++ b/docs/trie-db/modules/_types_.md
@@ -32,7 +32,7 @@
 **Ƭ EncodedPath**: * `Uint8Array` &#124; `null`
 *
 
-*Defined in [types.ts:28](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/types.ts#L28)*
+*Defined in [types.ts:28](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/types.ts#L28)*
 
 ___
 <a id="node"></a>
@@ -42,7 +42,7 @@ ___
 **Ƭ Node**: * [NodeEmpty](_types_.md#nodeempty) &#124; [NodeNotEmpty](_types_.md#nodenotempty)
 *
 
-*Defined in [types.ts:34](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/types.ts#L34)*
+*Defined in [types.ts:34](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/types.ts#L34)*
 
 ___
 <a id="nodebranch"></a>
@@ -51,7 +51,7 @@ ___
 
 **Ƭ NodeBranch**: *[[NodeEncodedOrEmpty](_types_.md#nodeencodedorempty), [NodeEncodedOrEmpty](_types_.md#nodeencodedorempty), [NodeEncodedOrEmpty](_types_.md#nodeencodedorempty), [NodeEncodedOrEmpty](_types_.md#nodeencodedorempty), [NodeEncodedOrEmpty](_types_.md#nodeencodedorempty), [NodeEncodedOrEmpty](_types_.md#nodeencodedorempty), [NodeEncodedOrEmpty](_types_.md#nodeencodedorempty), [NodeEncodedOrEmpty](_types_.md#nodeencodedorempty), [NodeEncodedOrEmpty](_types_.md#nodeencodedorempty), [NodeEncodedOrEmpty](_types_.md#nodeencodedorempty), [NodeEncodedOrEmpty](_types_.md#nodeencodedorempty), [NodeEncodedOrEmpty](_types_.md#nodeencodedorempty), [NodeEncodedOrEmpty](_types_.md#nodeencodedorempty), [NodeEncodedOrEmpty](_types_.md#nodeencodedorempty), [NodeEncodedOrEmpty](_types_.md#nodeencodedorempty), [NodeEncodedOrEmpty](_types_.md#nodeencodedorempty), [NodeEncodedOrEmpty](_types_.md#nodeencodedorempty)]*
 
-*Defined in [types.ts:20](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/types.ts#L20)*
+*Defined in [types.ts:20](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/types.ts#L20)*
 
 ___
 <a id="nodeempty"></a>
@@ -60,7 +60,7 @@ ___
 
 **Ƭ NodeEmpty**: *`null`*
 
-*Defined in [types.ts:14](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/types.ts#L14)*
+*Defined in [types.ts:14](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/types.ts#L14)*
 
 ___
 <a id="nodeencoded"></a>
@@ -69,7 +69,7 @@ ___
 
 **Ƭ NodeEncoded**: *`Uint8Array`*
 
-*Defined in [types.ts:16](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/types.ts#L16)*
+*Defined in [types.ts:16](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/types.ts#L16)*
 
 ___
 <a id="nodeencodedorempty"></a>
@@ -79,7 +79,7 @@ ___
 **Ƭ NodeEncodedOrEmpty**: * [NodeEncoded](_types_.md#nodeencoded) &#124; [NodeEmpty](_types_.md#nodeempty)
 *
 
-*Defined in [types.ts:18](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/types.ts#L18)*
+*Defined in [types.ts:18](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/types.ts#L18)*
 
 ___
 <a id="nodekv"></a>
@@ -88,7 +88,7 @@ ___
 
 **Ƭ NodeKv**: *[[EncodedPath](_types_.md#encodedpath), [NodeEncodedOrEmpty](_types_.md#nodeencodedorempty)]*
 
-*Defined in [types.ts:30](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/types.ts#L30)*
+*Defined in [types.ts:30](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/types.ts#L30)*
 
 ___
 <a id="nodenotempty"></a>
@@ -98,7 +98,7 @@ ___
 **Ƭ NodeNotEmpty**: * [NodeKv](_types_.md#nodekv) &#124; [NodeBranch](_types_.md#nodebranch)
 *
 
-*Defined in [types.ts:32](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/types.ts#L32)*
+*Defined in [types.ts:32](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/types.ts#L32)*
 
 ___
 
diff --git a/docs/trie-db/modules/_util_is_.md b/docs/trie-db/modules/_util_is_.md
index e42843b07..6ae2ae5c3 100644
--- a/docs/trie-db/modules/_util_is_.md
+++ b/docs/trie-db/modules/_util_is_.md
@@ -8,7 +8,7 @@
 
 ▸ **isBranchNode**(node: *[Node](_types_.md#node)*): `boolean`
 
-*Defined in [util/is.ts:57](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/is.ts#L57)*
+*Defined in [util/is.ts:57](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/is.ts#L57)*
 
 *__name__*: isBranchNode
 
@@ -33,7 +33,7 @@ ___
 
 ▸ **isEmptyNode**(node: *[Node](_types_.md#node)*): `boolean`
 
-*Defined in [util/is.ts:17](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/is.ts#L17)*
+*Defined in [util/is.ts:17](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/is.ts#L17)*
 
 *__name__*: isEmptyNode
 
@@ -58,7 +58,7 @@ ___
 
 ▸ **isExtensionNode**(node: *[Node](_types_.md#node)*): `boolean`
 
-*Defined in [util/is.ts:37](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/is.ts#L37)*
+*Defined in [util/is.ts:37](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/is.ts#L37)*
 
 *__name__*: isExtensionNode
 
@@ -83,7 +83,7 @@ ___
 
 ▸ **isKvNode**(node: *[Node](_types_.md#node)*): `boolean`
 
-*Defined in [util/is.ts:27](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/is.ts#L27)*
+*Defined in [util/is.ts:27](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/is.ts#L27)*
 
 *__name__*: isKvNode
 
@@ -108,7 +108,7 @@ ___
 
 ▸ **isLeafNode**(node: *[Node](_types_.md#node)*): `boolean`
 
-*Defined in [util/is.ts:47](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/is.ts#L47)*
+*Defined in [util/is.ts:47](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/is.ts#L47)*
 
 *__name__*: isLeafNode
 
diff --git a/docs/trie-db/modules/_util_key_.md b/docs/trie-db/modules/_util_key_.md
index 07316ceb7..687f62322 100644
--- a/docs/trie-db/modules/_util_key_.md
+++ b/docs/trie-db/modules/_util_key_.md
@@ -8,7 +8,7 @@
 
 ▸ **computeExtensionKey**(nibbles: *`Uint8Array`*): [EncodedPath](_types_.md#encodedpath)
 
-*Defined in [util/key.ts:50](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/key.ts#L50)*
+*Defined in [util/key.ts:50](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/key.ts#L50)*
 
 **Parameters:**
 
@@ -25,7 +25,7 @@ ___
 
 ▸ **computeLeafKey**(nibbles: *`Uint8Array`*): [EncodedPath](_types_.md#encodedpath)
 
-*Defined in [util/key.ts:54](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/key.ts#L54)*
+*Defined in [util/key.ts:54](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/key.ts#L54)*
 
 **Parameters:**
 
@@ -42,7 +42,7 @@ ___
 
 ▸ **consumeCommonPrefix**(left: *`Uint8Array`*, right: *`Uint8Array`*): [`Uint8Array`, `Uint8Array`, `Uint8Array`]
 
-*Defined in [util/key.ts:70](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/key.ts#L70)*
+*Defined in [util/key.ts:70](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/key.ts#L70)*
 
 **Parameters:**
 
@@ -60,7 +60,7 @@ ___
 
 ▸ **extractKey**(node: *[Node](_types_.md#node)*): `Uint8Array`
 
-*Defined in [util/key.ts:12](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/key.ts#L12)*
+*Defined in [util/key.ts:12](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/key.ts#L12)*
 
 **Parameters:**
 
@@ -77,7 +77,7 @@ ___
 
 ▸ **getCommonPrefixLength**(left: *`Uint8Array`*, right: *`Uint8Array`*): `number`
 
-*Defined in [util/key.ts:60](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/key.ts#L60)*
+*Defined in [util/key.ts:60](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/key.ts#L60)*
 
 **Parameters:**
 
@@ -95,7 +95,7 @@ ___
 
 ▸ **keyEquals**(key: * `Uint8Array` &#124; `null`*, test: * `Uint8Array` &#124; `null`*): `boolean`
 
-*Defined in [util/key.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/key.ts#L24)*
+*Defined in [util/key.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/key.ts#L24)*
 
 **Parameters:**
 
@@ -113,7 +113,7 @@ ___
 
 ▸ **keyStartsWith**(key: * `Uint8Array` &#124; `null`*, partial: * `Uint8Array` &#124; `null`*): `boolean`
 
-*Defined in [util/key.ts:34](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/key.ts#L34)*
+*Defined in [util/key.ts:34](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/key.ts#L34)*
 
 **Parameters:**
 
diff --git a/docs/trie-db/modules/_util_nibbles_.md b/docs/trie-db/modules/_util_nibbles_.md
index b547c937c..61bc3be32 100644
--- a/docs/trie-db/modules/_util_nibbles_.md
+++ b/docs/trie-db/modules/_util_nibbles_.md
@@ -8,7 +8,7 @@
 
 ▸ **addNibblesTerminator**(nibbles: *`Uint8Array`*): `Uint8Array`
 
-*Defined in [util/nibbles.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/nibbles.ts#L22)*
+*Defined in [util/nibbles.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/nibbles.ts#L22)*
 
 **Parameters:**
 
@@ -25,7 +25,7 @@ ___
 
 ▸ **decodeNibbles**(value: *[NodeEncodedOrEmpty](_types_.md#nodeencodedorempty)*): `Uint8Array`
 
-*Defined in [util/nibbles.ts:43](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/nibbles.ts#L43)*
+*Defined in [util/nibbles.ts:43](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/nibbles.ts#L43)*
 
 **Parameters:**
 
@@ -42,7 +42,7 @@ ___
 
 ▸ **encodeNibbles**(nibbles: *`Uint8Array`*): [NodeEncoded](_types_.md#nodeencoded)
 
-*Defined in [util/nibbles.ts:56](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/nibbles.ts#L56)*
+*Defined in [util/nibbles.ts:56](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/nibbles.ts#L56)*
 
 **Parameters:**
 
@@ -59,7 +59,7 @@ ___
 
 ▸ **isNibblesTerminated**(nibbles: *`Uint8Array`*): `boolean`
 
-*Defined in [util/nibbles.ts:18](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/nibbles.ts#L18)*
+*Defined in [util/nibbles.ts:18](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/nibbles.ts#L18)*
 
 **Parameters:**
 
@@ -76,7 +76,7 @@ ___
 
 ▸ **removeNibblesTerminator**(nibbles: *`Uint8Array`*): `Uint8Array`
 
-*Defined in [util/nibbles.ts:35](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/nibbles.ts#L35)*
+*Defined in [util/nibbles.ts:35](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/nibbles.ts#L35)*
 
 **Parameters:**
 
diff --git a/docs/trie-db/modules/_util_node_.md b/docs/trie-db/modules/_util_node_.md
index 40137f947..79a3b20dc 100644
--- a/docs/trie-db/modules/_util_node_.md
+++ b/docs/trie-db/modules/_util_node_.md
@@ -8,7 +8,7 @@
 
 ▸ **decodeNode**(encoded: * `Uint8Array` &#124; [Node](_types_.md#node)*): [Node](_types_.md#node)
 
-*Defined in [util/node.ts:31](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/node.ts#L31)*
+*Defined in [util/node.ts:31](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/node.ts#L31)*
 
 **Parameters:**
 
@@ -25,7 +25,7 @@ ___
 
 ▸ **encodeNode**(node: *[Node](_types_.md#node)*): `Uint8Array`
 
-*Defined in [util/node.ts:48](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/node.ts#L48)*
+*Defined in [util/node.ts:48](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/node.ts#L48)*
 
 **Parameters:**
 
@@ -42,7 +42,7 @@ ___
 
 ▸ **getNodeType**(node: *[Node](_types_.md#node)*): [NodeType](../enums/_types_.nodetype.md)
 
-*Defined in [util/node.ts:14](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-db/src/util/node.ts#L14)*
+*Defined in [util/node.ts:14](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-db/src/util/node.ts#L14)*
 
 **Parameters:**
 
diff --git a/docs/trie-hash/index.html b/docs/trie-hash/index.html
index e10215cfb..a82ad0437 100644
--- a/docs/trie-hash/index.html
+++ b/docs/trie-hash/index.html
@@ -412,7 +412,7 @@
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"trie-hash","level":"1.4","depth":1,"next":{"title":"util","level":"1.5","depth":1,"path":"util/README.md","ref":"util/README.md","articles":[]},"previous":{"title":"trie-db","level":"1.3","depth":1,"path":"trie-db/README.md","ref":"trie-db/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"trie-hash/README.md","mtime":"2018-11-01T13:42:52.515Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-01T13:43:41.803Z"},"basePath":"..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"trie-hash","level":"1.4","depth":1,"next":{"title":"util","level":"1.5","depth":1,"path":"util/README.md","ref":"util/README.md","articles":[]},"previous":{"title":"trie-db","level":"1.3","depth":1,"path":"trie-db/README.md","ref":"trie-db/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"trie-hash/README.md","mtime":"2018-11-10T10:41:04.003Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-10T10:41:56.704Z"},"basePath":"..","book":{"language":""}});
         });
     </script>
 </div>
diff --git a/docs/trie-hash/modules/_encode_aux_.md b/docs/trie-hash/modules/_encode_aux_.md
index 53539ca9e..9fdbafbc8 100644
--- a/docs/trie-hash/modules/_encode_aux_.md
+++ b/docs/trie-hash/modules/_encode_aux_.md
@@ -8,7 +8,7 @@
 
 ▸ **encodeAux**(pairs: *`Trie$Pairs`*, preLength: *`number`*):  `Uint8Array` &#124; `any`[]
 
-*Defined in [encode/aux.ts:12](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-hash/src/encode/aux.ts#L12)*
+*Defined in [encode/aux.ts:12](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-hash/src/encode/aux.ts#L12)*
 
 **Parameters:**
 
diff --git a/docs/trie-hash/modules/_encode_hexprefix_.md b/docs/trie-hash/modules/_encode_hexprefix_.md
index 300d662c9..9d80f3996 100644
--- a/docs/trie-hash/modules/_encode_hexprefix_.md
+++ b/docs/trie-hash/modules/_encode_hexprefix_.md
@@ -8,7 +8,7 @@
 
 ▸ **encodeHexPrefix**(nibbles: * `Uint8Array` &#124; `Array`<`number`>*, isLeaf: *`boolean`*): `Uint8Array`
 
-*Defined in [encode/hexPrefix.ts:5](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-hash/src/encode/hexPrefix.ts#L5)*
+*Defined in [encode/hexPrefix.ts:5](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-hash/src/encode/hexPrefix.ts#L5)*
 
 **Parameters:**
 
diff --git a/docs/trie-hash/modules/_encode_index_.md b/docs/trie-hash/modules/_encode_index_.md
index f2ef54d61..d9ebed413 100644
--- a/docs/trie-hash/modules/_encode_index_.md
+++ b/docs/trie-hash/modules/_encode_index_.md
@@ -8,7 +8,7 @@
 
 ▸ **encode**(pairs: *`Trie$Pairs`*, preLength: *`number`*): `Array`<`any`>
 
-*Defined in [encode/index.ts:36](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-hash/src/encode/index.ts#L36)*
+*Defined in [encode/index.ts:36](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-hash/src/encode/index.ts#L36)*
 
 *__name__*: encode
 
diff --git a/docs/trie-hash/modules/_encode_pairs_.md b/docs/trie-hash/modules/_encode_pairs_.md
index a999b5c28..1fdd41dda 100644
--- a/docs/trie-hash/modules/_encode_pairs_.md
+++ b/docs/trie-hash/modules/_encode_pairs_.md
@@ -8,7 +8,7 @@
 
 ▸ **encodePairs**(pairs: *`Trie$Pairs`*, preLength: *`number`*): `Array`<`any`>
 
-*Defined in [encode/pairs.ts:23](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-hash/src/encode/pairs.ts#L23)*
+*Defined in [encode/pairs.ts:23](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-hash/src/encode/pairs.ts#L23)*
 
 **Parameters:**
 
diff --git a/docs/trie-hash/modules/_encode_shared_.md b/docs/trie-hash/modules/_encode_shared_.md
index 7ec236548..01e112b81 100644
--- a/docs/trie-hash/modules/_encode_shared_.md
+++ b/docs/trie-hash/modules/_encode_shared_.md
@@ -8,7 +8,7 @@
 
 ▸ **encodeShared**(pairs: *`Trie$Pairs`*, preLength: *`number`*, sharedLength: *`number`*): `Array`<`any`>
 
-*Defined in [encode/shared.ts:10](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-hash/src/encode/shared.ts#L10)*
+*Defined in [encode/shared.ts:10](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-hash/src/encode/shared.ts#L10)*
 
 **Parameters:**
 
diff --git a/docs/trie-hash/modules/_encode_single_.md b/docs/trie-hash/modules/_encode_single_.md
index 9c56817ac..bda630fe6 100644
--- a/docs/trie-hash/modules/_encode_single_.md
+++ b/docs/trie-hash/modules/_encode_single_.md
@@ -8,7 +8,7 @@
 
 ▸ **encodeSingle**(pair: *`Trie$Pair`*, preLength: *`number`*): `Array`<`any`>
 
-*Defined in [encode/single.ts:9](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-hash/src/encode/single.ts#L9)*
+*Defined in [encode/single.ts:9](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-hash/src/encode/single.ts#L9)*
 
 **Parameters:**
 
diff --git a/docs/trie-hash/modules/_root_.md b/docs/trie-hash/modules/_root_.md
index ff7bd67e4..a4a35a810 100644
--- a/docs/trie-hash/modules/_root_.md
+++ b/docs/trie-hash/modules/_root_.md
@@ -8,7 +8,7 @@
 
 ▸ **trieRoot**(pairs: *`Trie$Pairs`*): `Uint8Array`
 
-*Defined in [root.ts:30](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-hash/src/root.ts#L30)*
+*Defined in [root.ts:30](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-hash/src/root.ts#L30)*
 
 *__name__*: trieRoot
 
diff --git a/docs/trie-hash/modules/_rootordered_.md b/docs/trie-hash/modules/_rootordered_.md
index 6a5846cc1..a2ceaee2c 100644
--- a/docs/trie-hash/modules/_rootordered_.md
+++ b/docs/trie-hash/modules/_rootordered_.md
@@ -8,7 +8,7 @@
 
 ▸ **trieRootOrdered**(values: *`Array`<`Uint8Array`>*): `Uint8Array`
 
-*Defined in [rootOrdered.ts:29](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-hash/src/rootOrdered.ts#L29)*
+*Defined in [rootOrdered.ts:29](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-hash/src/rootOrdered.ts#L29)*
 
 *__name__*: trieRootOrdered
 
diff --git a/docs/trie-hash/modules/_util_asnibbles_.md b/docs/trie-hash/modules/_util_asnibbles_.md
index 932649eb5..7c9a57eab 100644
--- a/docs/trie-hash/modules/_util_asnibbles_.md
+++ b/docs/trie-hash/modules/_util_asnibbles_.md
@@ -8,7 +8,7 @@
 
 ▸ **asNibbles**(bytes: * `Uint8Array` &#124; `Array`<`number`> &#124; `null`*): `Uint8Array`
 
-*Defined in [util/asNibbles.ts:20](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-hash/src/util/asNibbles.ts#L20)*
+*Defined in [util/asNibbles.ts:20](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-hash/src/util/asNibbles.ts#L20)*
 
 *__name__*: asNibbles
 
diff --git a/docs/trie-hash/modules/_util_fromnibbles_.md b/docs/trie-hash/modules/_util_fromnibbles_.md
index b5ddc1367..93b421a0f 100644
--- a/docs/trie-hash/modules/_util_fromnibbles_.md
+++ b/docs/trie-hash/modules/_util_fromnibbles_.md
@@ -8,7 +8,7 @@
 
 ▸ **fromNibbles**(nibbles: * `Uint8Array` &#124; `Array`<`number`>*): `Uint8Array`
 
-*Defined in [util/fromNibbles.ts:20](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-hash/src/util/fromNibbles.ts#L20)*
+*Defined in [util/fromNibbles.ts:20](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-hash/src/util/fromNibbles.ts#L20)*
 
 *__name__*: fromNibbles
 
diff --git a/docs/trie-hash/modules/_util_genroot_.md b/docs/trie-hash/modules/_util_genroot_.md
index e6dcb9e4b..ecbc91d36 100644
--- a/docs/trie-hash/modules/_util_genroot_.md
+++ b/docs/trie-hash/modules/_util_genroot_.md
@@ -8,7 +8,7 @@
 
 ▸ **genRoot**(pairs: *`Trie$Pairs`*): `Uint8Array`
 
-*Defined in [util/genRoot.ts:17](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-hash/src/util/genRoot.ts#L17)*
+*Defined in [util/genRoot.ts:17](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-hash/src/util/genRoot.ts#L17)*
 
 *__name__*: genRoot
 
diff --git a/docs/trie-hash/modules/_util_pairsuniq_.md b/docs/trie-hash/modules/_util_pairsuniq_.md
index 31aac991e..e1c7197e4 100644
--- a/docs/trie-hash/modules/_util_pairsuniq_.md
+++ b/docs/trie-hash/modules/_util_pairsuniq_.md
@@ -8,7 +8,7 @@
 
 ▸ **pairsUniq**(pairs: *`Trie$Pairs`*): `Trie$Pairs`
 
-*Defined in [util/pairsUniq.ts:18](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-hash/src/util/pairsUniq.ts#L18)*
+*Defined in [util/pairsUniq.ts:18](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-hash/src/util/pairsUniq.ts#L18)*
 
 *__name__*: pairsUniq
 
diff --git a/docs/trie-hash/modules/_util_sharedlength_.md b/docs/trie-hash/modules/_util_sharedlength_.md
index 409030669..058fe8f4e 100644
--- a/docs/trie-hash/modules/_util_sharedlength_.md
+++ b/docs/trie-hash/modules/_util_sharedlength_.md
@@ -8,7 +8,7 @@
 
 ▸ **getSharedLength**(a: *`Uint8Array`*, b: *`Uint8Array`*): `number`
 
-*Defined in [util/sharedLength.ts:13](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-hash/src/util/sharedLength.ts#L13)*
+*Defined in [util/sharedLength.ts:13](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-hash/src/util/sharedLength.ts#L13)*
 
 *__name__*: getSharedLength
 
diff --git a/docs/trie-hash/modules/_util_sharedprefixlength_.md b/docs/trie-hash/modules/_util_sharedprefixlength_.md
index 6fdf826cc..9fb53aa19 100644
--- a/docs/trie-hash/modules/_util_sharedprefixlength_.md
+++ b/docs/trie-hash/modules/_util_sharedprefixlength_.md
@@ -8,7 +8,7 @@
 
 ▸ **sharedPrefixLength**(pairs: *`Trie$Pairs`*): `number`
 
-*Defined in [util/sharedPrefixLength.ts:13](https://github.com/polkadot-js/common/blob/0ddac0a/packages/trie-hash/src/util/sharedPrefixLength.ts#L13)*
+*Defined in [util/sharedPrefixLength.ts:13](https://github.com/polkadot-js/common/blob/a9878a2/packages/trie-hash/src/util/sharedPrefixLength.ts#L13)*
 
 *__name__*: sharedPrefixLength
 
diff --git a/docs/util-crypto/index.html b/docs/util-crypto/index.html
index a5ca798af..54c062469 100644
--- a/docs/util-crypto/index.html
+++ b/docs/util-crypto/index.html
@@ -485,7 +485,7 @@
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"util-crypto","level":"1.6","depth":1,"next":{"title":"Keyring","level":"2.1","depth":1,"path":"examples/keyring/README.md","ref":"examples/keyring/README.md","articles":[{"title":"Create Account","level":"2.1.1","depth":2,"path":"examples/keyring/01_create_account/README.md","ref":"examples/keyring/01_create_account/README.md","articles":[]},{"title":"Load Accounts","level":"2.1.2","depth":2,"path":"examples/keyring/02_load_accounts/README.md","ref":"examples/keyring/02_load_accounts/README.md","articles":[]}]},"previous":{"title":"util","level":"1.5","depth":1,"path":"util/README.md","ref":"util/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"util-crypto/README.md","mtime":"2018-11-01T13:43:06.672Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-01T13:43:41.803Z"},"basePath":"..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"util-crypto","level":"1.6","depth":1,"next":{"title":"Keyring","level":"2.1","depth":1,"path":"examples/keyring/README.md","ref":"examples/keyring/README.md","articles":[{"title":"Create Account","level":"2.1.1","depth":2,"path":"examples/keyring/01_create_account/README.md","ref":"examples/keyring/01_create_account/README.md","articles":[]},{"title":"Load Accounts","level":"2.1.2","depth":2,"path":"examples/keyring/02_load_accounts/README.md","ref":"examples/keyring/02_load_accounts/README.md","articles":[]}]},"previous":{"title":"util","level":"1.5","depth":1,"path":"util/README.md","ref":"util/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"util-crypto/README.md","mtime":"2018-11-10T10:41:19.219Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-10T10:41:56.704Z"},"basePath":"..","book":{"language":""}});
         });
     </script>
 </div>
diff --git a/docs/util-crypto/modules/_blake2_ashex_.md b/docs/util-crypto/modules/_blake2_ashex_.md
index f22e374e0..c13fcf60c 100644
--- a/docs/util-crypto/modules/_blake2_ashex_.md
+++ b/docs/util-crypto/modules/_blake2_ashex_.md
@@ -8,7 +8,7 @@
 
 ▸ **blake2AsHex**(data: *`Uint8Array`*, bitLength?: *`number`*): `string`
 
-*Defined in [blake2/asHex.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/blake2/asHex.ts#L22)*
+*Defined in [blake2/asHex.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/blake2/asHex.ts#L22)*
 
 *__name__*: blake2AsHex
 
diff --git a/docs/util-crypto/modules/_blake2_asu8a_.md b/docs/util-crypto/modules/_blake2_asu8a_.md
index d80d29aca..aba522e94 100644
--- a/docs/util-crypto/modules/_blake2_asu8a_.md
+++ b/docs/util-crypto/modules/_blake2_asu8a_.md
@@ -8,7 +8,7 @@
 
 ▸ **blake2AsU8a**(data: *`Uint8Array`*, bitLength?: *`number`*, key?: *`Uint8Array`*): `Uint8Array`
 
-*Defined in [blake2/asU8a.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/blake2/asU8a.ts#L22)*
+*Defined in [blake2/asU8a.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/blake2/asU8a.ts#L22)*
 
 *__name__*: blake2AsU8a
 
diff --git a/docs/util-crypto/modules/_blake2_blake2b_ashex_.md b/docs/util-crypto/modules/_blake2_blake2b_ashex_.md
index 8a8817ebf..515e81bc4 100644
--- a/docs/util-crypto/modules/_blake2_blake2b_ashex_.md
+++ b/docs/util-crypto/modules/_blake2_blake2b_ashex_.md
@@ -8,7 +8,7 @@
 
 ▸ **blake2bAsHex**(data: *`Uint8Array`*, bitLength?: *`number`*): `string`
 
-*Defined in [blake2/blake2b/asHex.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/blake2/blake2b/asHex.ts#L24)*
+*Defined in [blake2/blake2b/asHex.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/blake2/blake2b/asHex.ts#L24)*
 
 *__name__*: blake2bAsHex
 
diff --git a/docs/util-crypto/modules/_blake2_blake2b_asu8a_.md b/docs/util-crypto/modules/_blake2_blake2b_asu8a_.md
index d7a1f02ea..920662ff7 100644
--- a/docs/util-crypto/modules/_blake2_blake2b_asu8a_.md
+++ b/docs/util-crypto/modules/_blake2_blake2b_asu8a_.md
@@ -8,7 +8,7 @@
 
 ▸ **blake2bAsU8a**(data: *`Uint8Array`*, bitLength?: *`number`*, key?: * `Uint8Array` &#124; `null`*): `Uint8Array`
 
-*Defined in [blake2/blake2b/asU8a.ts:23](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/blake2/blake2b/asU8a.ts#L23)*
+*Defined in [blake2/blake2b/asU8a.ts:23](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/blake2/blake2b/asU8a.ts#L23)*
 
 *__name__*: blake2bAsU8a
 
diff --git a/docs/util-crypto/modules/_keccak_ashex_.md b/docs/util-crypto/modules/_keccak_ashex_.md
index 4c1a61c5f..76434e5e6 100644
--- a/docs/util-crypto/modules/_keccak_ashex_.md
+++ b/docs/util-crypto/modules/_keccak_ashex_.md
@@ -8,7 +8,7 @@
 
 ▸ **keccakAsHex**(value: * `Buffer` &#124; `Uint8Array` &#124; `string`*): `string`
 
-*Defined in [keccak/asHex.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/keccak/asHex.ts#L24)*
+*Defined in [keccak/asHex.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/keccak/asHex.ts#L24)*
 
 *__name__*: keccakAsHex
 
diff --git a/docs/util-crypto/modules/_keccak_asu8a_.md b/docs/util-crypto/modules/_keccak_asu8a_.md
index bf1ca0632..8908aa49f 100644
--- a/docs/util-crypto/modules/_keccak_asu8a_.md
+++ b/docs/util-crypto/modules/_keccak_asu8a_.md
@@ -8,7 +8,7 @@
 
 ▸ **keccakAsU8a**(value: * `Buffer` &#124; `Uint8Array` &#124; `string`*): `Uint8Array`
 
-*Defined in [keccak/asU8a.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/keccak/asU8a.ts#L22)*
+*Defined in [keccak/asU8a.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/keccak/asU8a.ts#L22)*
 
 *__name__*: keccakAsU8a
 
diff --git a/docs/util-crypto/modules/_mnemonic_generate_.md b/docs/util-crypto/modules/_mnemonic_generate_.md
index 07a2fcc49..0695beeb7 100644
--- a/docs/util-crypto/modules/_mnemonic_generate_.md
+++ b/docs/util-crypto/modules/_mnemonic_generate_.md
@@ -8,7 +8,7 @@
 
 ▸ **mnemonicGenerate**(): `string`
 
-*Defined in [mnemonic/generate.ts:20](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/mnemonic/generate.ts#L20)*
+*Defined in [mnemonic/generate.ts:20](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/mnemonic/generate.ts#L20)*
 
 *__name__*: mnemonicGenerate
 
diff --git a/docs/util-crypto/modules/_mnemonic_tosecret_.md b/docs/util-crypto/modules/_mnemonic_tosecret_.md
index da31eab1a..ee7d38541 100644
--- a/docs/util-crypto/modules/_mnemonic_tosecret_.md
+++ b/docs/util-crypto/modules/_mnemonic_tosecret_.md
@@ -8,7 +8,7 @@
 
 ▸ **toSecret**(mnemonic: *`string`*): `Uint8Array`
 
-*Defined in [mnemonic/toSecret.ts:8](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/mnemonic/toSecret.ts#L8)*
+*Defined in [mnemonic/toSecret.ts:8](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/mnemonic/toSecret.ts#L8)*
 
 **Parameters:**
 
diff --git a/docs/util-crypto/modules/_mnemonic_toseed_.md b/docs/util-crypto/modules/_mnemonic_toseed_.md
index d8159b576..0c6d95b19 100644
--- a/docs/util-crypto/modules/_mnemonic_toseed_.md
+++ b/docs/util-crypto/modules/_mnemonic_toseed_.md
@@ -8,7 +8,7 @@
 
 ▸ **toSeed**(mnemonic: *`string`*): `Uint8Array`
 
-*Defined in [mnemonic/toSeed.ts:25](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/mnemonic/toSeed.ts#L25)*
+*Defined in [mnemonic/toSeed.ts:25](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/mnemonic/toSeed.ts#L25)*
 
 *__name__*: toSeed
 
diff --git a/docs/util-crypto/modules/_mnemonic_validate_.md b/docs/util-crypto/modules/_mnemonic_validate_.md
index c3d6b80eb..c10522e38 100644
--- a/docs/util-crypto/modules/_mnemonic_validate_.md
+++ b/docs/util-crypto/modules/_mnemonic_validate_.md
@@ -8,7 +8,7 @@
 
 ▸ **mnemonicValidate**(mnemonic: *`string`*): `boolean`
 
-*Defined in [mnemonic/validate.ts:21](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/mnemonic/validate.ts#L21)*
+*Defined in [mnemonic/validate.ts:21](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/mnemonic/validate.ts#L21)*
 
 *__name__*: mnemonicValidate
 
diff --git a/docs/util-crypto/modules/_nacl_decrypt_.md b/docs/util-crypto/modules/_nacl_decrypt_.md
index a0b7e2f10..423835c03 100644
--- a/docs/util-crypto/modules/_nacl_decrypt_.md
+++ b/docs/util-crypto/modules/_nacl_decrypt_.md
@@ -8,7 +8,7 @@
 
 ▸ **naclDecrypt**(encrypted: *`Uint8Array`*, nonce: *`Uint8Array`*, secret: *`Uint8Array`*):  `Uint8Array` &#124; `null`
 
-*Defined in [nacl/decrypt.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/nacl/decrypt.ts#L22)*
+*Defined in [nacl/decrypt.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/nacl/decrypt.ts#L22)*
 
 *__name__*: naclDecrypt
 
diff --git a/docs/util-crypto/modules/_nacl_encrypt_.md b/docs/util-crypto/modules/_nacl_encrypt_.md
index 8bb049ba1..9060287ad 100644
--- a/docs/util-crypto/modules/_nacl_encrypt_.md
+++ b/docs/util-crypto/modules/_nacl_encrypt_.md
@@ -8,7 +8,7 @@
 
 ▸ **naclEncrypt**(message: *`Uint8Array`*, secret: *`Uint8Array`*, nonce?: *`Uint8Array`*): `Encrypted`
 
-*Defined in [nacl/encrypt.ts:29](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/nacl/encrypt.ts#L29)*
+*Defined in [nacl/encrypt.ts:29](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/nacl/encrypt.ts#L29)*
 
 *__name__*: naclEncrypt
 
diff --git a/docs/util-crypto/modules/_nacl_keypair_fromrandom_.md b/docs/util-crypto/modules/_nacl_keypair_fromrandom_.md
index 5b4112453..3e4a10c41 100644
--- a/docs/util-crypto/modules/_nacl_keypair_fromrandom_.md
+++ b/docs/util-crypto/modules/_nacl_keypair_fromrandom_.md
@@ -8,7 +8,7 @@
 
 ▸ **naclKeypairFromRandom**(): `KeypairType`
 
-*Defined in [nacl/keypair/fromRandom.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/nacl/keypair/fromRandom.ts#L24)*
+*Defined in [nacl/keypair/fromRandom.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/nacl/keypair/fromRandom.ts#L24)*
 
 *__name__*: naclKeypairFromRandom
 
diff --git a/docs/util-crypto/modules/_nacl_keypair_fromsecret_.md b/docs/util-crypto/modules/_nacl_keypair_fromsecret_.md
index 95323fee6..7032fe185 100644
--- a/docs/util-crypto/modules/_nacl_keypair_fromsecret_.md
+++ b/docs/util-crypto/modules/_nacl_keypair_fromsecret_.md
@@ -8,7 +8,7 @@
 
 ▸ **naclKeypairFromSecret**(secret: *`Uint8Array`*): `KeypairType`
 
-*Defined in [nacl/keypair/fromSecret.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/nacl/keypair/fromSecret.ts#L24)*
+*Defined in [nacl/keypair/fromSecret.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/nacl/keypair/fromSecret.ts#L24)*
 
 *__name__*: naclKeypairFromSecret
 
diff --git a/docs/util-crypto/modules/_nacl_keypair_fromseed_.md b/docs/util-crypto/modules/_nacl_keypair_fromseed_.md
index 7391ebc84..640a0f6cc 100644
--- a/docs/util-crypto/modules/_nacl_keypair_fromseed_.md
+++ b/docs/util-crypto/modules/_nacl_keypair_fromseed_.md
@@ -8,7 +8,7 @@
 
 ▸ **naclKeypairFromSeed**(seed: *`Uint8Array`*): `KeypairType`
 
-*Defined in [nacl/keypair/fromSeed.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/nacl/keypair/fromSeed.ts#L24)*
+*Defined in [nacl/keypair/fromSeed.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/nacl/keypair/fromSeed.ts#L24)*
 
 *__name__*: naclKeypairFromSeed
 
diff --git a/docs/util-crypto/modules/_nacl_keypair_fromstring_.md b/docs/util-crypto/modules/_nacl_keypair_fromstring_.md
index a09d8861d..158afcba9 100644
--- a/docs/util-crypto/modules/_nacl_keypair_fromstring_.md
+++ b/docs/util-crypto/modules/_nacl_keypair_fromstring_.md
@@ -8,7 +8,7 @@
 
 ▸ **naclKeypairFromString**(value: *`string`*): `KeypairType`
 
-*Defined in [nacl/keypair/fromString.ts:27](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/nacl/keypair/fromString.ts#L27)*
+*Defined in [nacl/keypair/fromString.ts:27](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/nacl/keypair/fromString.ts#L27)*
 
 *__name__*: naclKeypairFromString
 
diff --git a/docs/util-crypto/modules/_nacl_sign_.md b/docs/util-crypto/modules/_nacl_sign_.md
index 375861021..e328fd8a1 100644
--- a/docs/util-crypto/modules/_nacl_sign_.md
+++ b/docs/util-crypto/modules/_nacl_sign_.md
@@ -8,7 +8,7 @@
 
 ▸ **naclSign**(message: *`Uint8Array`*, secretKey: *`Uint8Array`*): `Uint8Array`
 
-*Defined in [nacl/sign.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/nacl/sign.ts#L22)*
+*Defined in [nacl/sign.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/nacl/sign.ts#L22)*
 
 *__name__*: naclSign
 
diff --git a/docs/util-crypto/modules/_nacl_verify_.md b/docs/util-crypto/modules/_nacl_verify_.md
index 040afe034..b1d3036e9 100644
--- a/docs/util-crypto/modules/_nacl_verify_.md
+++ b/docs/util-crypto/modules/_nacl_verify_.md
@@ -8,7 +8,7 @@
 
 ▸ **naclVerify**(message: *`Uint8Array`*, signature: *`Uint8Array`*, publicKey: *`Uint8Array`*): `boolean`
 
-*Defined in [nacl/verify.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/nacl/verify.ts#L22)*
+*Defined in [nacl/verify.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/nacl/verify.ts#L22)*
 
 *__name__*: naclSign
 
diff --git a/docs/util-crypto/modules/_random_ashex_.md b/docs/util-crypto/modules/_random_ashex_.md
index 297c727b9..db3cba2dc 100644
--- a/docs/util-crypto/modules/_random_ashex_.md
+++ b/docs/util-crypto/modules/_random_ashex_.md
@@ -8,7 +8,7 @@
 
 ▸ **randomAsHex**(length?: *`number`*): `string`
 
-*Defined in [random/asHex.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/random/asHex.ts#L24)*
+*Defined in [random/asHex.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/random/asHex.ts#L24)*
 
 *__name__*: randomAsHex
 
diff --git a/docs/util-crypto/modules/_random_asnumber_.md b/docs/util-crypto/modules/_random_asnumber_.md
index f7267233b..14f29edc4 100644
--- a/docs/util-crypto/modules/_random_asnumber_.md
+++ b/docs/util-crypto/modules/_random_asnumber_.md
@@ -8,7 +8,7 @@
 
 ▸ **randomAsNumber**(): `number`
 
-*Defined in [random/asNumber.ts:27](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/random/asNumber.ts#L27)*
+*Defined in [random/asNumber.ts:27](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/random/asNumber.ts#L27)*
 
 *__name__*: randomAsNumber
 
diff --git a/docs/util-crypto/modules/_random_asu8a_.md b/docs/util-crypto/modules/_random_asu8a_.md
index 3ea3a2452..84ec2ee3a 100644
--- a/docs/util-crypto/modules/_random_asu8a_.md
+++ b/docs/util-crypto/modules/_random_asu8a_.md
@@ -8,7 +8,7 @@
 
 ▸ **randomAsU8a**(length?: *`number`*): `Uint8Array`
 
-*Defined in [random/asU8a.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/random/asU8a.ts#L22)*
+*Defined in [random/asU8a.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/random/asU8a.ts#L22)*
 
 *__name__*: randomAsU8a
 
diff --git a/docs/util-crypto/modules/_sha512_asu8a_.md b/docs/util-crypto/modules/_sha512_asu8a_.md
index 2b532f98b..24e67a30e 100644
--- a/docs/util-crypto/modules/_sha512_asu8a_.md
+++ b/docs/util-crypto/modules/_sha512_asu8a_.md
@@ -8,7 +8,7 @@
 
 ▸ **sha512AsU8a**(data: *`Uint8Array`*): `Uint8Array`
 
-*Defined in [sha512/asU8a.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/sha512/asU8a.ts#L22)*
+*Defined in [sha512/asU8a.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/sha512/asU8a.ts#L22)*
 
 *__name__*: sha512AsU8a
 
diff --git a/docs/util-crypto/modules/_xxhash_ashex_.md b/docs/util-crypto/modules/_xxhash_ashex_.md
index 05edf7ef6..b6f50a67d 100644
--- a/docs/util-crypto/modules/_xxhash_ashex_.md
+++ b/docs/util-crypto/modules/_xxhash_ashex_.md
@@ -8,7 +8,7 @@
 
 ▸ **xxhashAsHex**(data: * `Buffer` &#124; `Uint8Array` &#124; `string`*, bitLength?: *`number`*): `string`
 
-*Defined in [xxhash/asHex.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/xxhash/asHex.ts#L24)*
+*Defined in [xxhash/asHex.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/xxhash/asHex.ts#L24)*
 
 *__name__*: xxhashAsHex
 
diff --git a/docs/util-crypto/modules/_xxhash_asu8a_.md b/docs/util-crypto/modules/_xxhash_asu8a_.md
index 423ad4c1a..d57c842cb 100644
--- a/docs/util-crypto/modules/_xxhash_asu8a_.md
+++ b/docs/util-crypto/modules/_xxhash_asu8a_.md
@@ -8,7 +8,7 @@
 
 ▸ **xxhashAsU8a**(data: * `Buffer` &#124; `Uint8Array` &#124; `string`*, bitLength?: *`number`*): `Uint8Array`
 
-*Defined in [xxhash/asU8a.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/xxhash/asU8a.ts#L22)*
+*Defined in [xxhash/asU8a.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/xxhash/asU8a.ts#L22)*
 
 *__name__*: xxhashAsU8a
 
diff --git a/docs/util-crypto/modules/_xxhash_xxhash64_asbn_.md b/docs/util-crypto/modules/_xxhash_xxhash64_asbn_.md
index c397d4478..1dff6af67 100644
--- a/docs/util-crypto/modules/_xxhash_xxhash64_asbn_.md
+++ b/docs/util-crypto/modules/_xxhash_xxhash64_asbn_.md
@@ -8,7 +8,7 @@
 
 ▸ **xxhash64AsBn**(data: * `Buffer` &#124; `Uint8Array` &#124; `string`*, seed: *`number`*): `BN`
 
-*Defined in [xxhash/xxhash64/asBn.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/xxhash/xxhash64/asBn.ts#L24)*
+*Defined in [xxhash/xxhash64/asBn.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/xxhash/xxhash64/asBn.ts#L24)*
 
 *__name__*: xxhash64AsBn
 
diff --git a/docs/util-crypto/modules/_xxhash_xxhash64_ashex_.md b/docs/util-crypto/modules/_xxhash_xxhash64_ashex_.md
index 5f9dd4a60..676bd697d 100644
--- a/docs/util-crypto/modules/_xxhash_xxhash64_ashex_.md
+++ b/docs/util-crypto/modules/_xxhash_xxhash64_ashex_.md
@@ -8,7 +8,7 @@
 
 ▸ **xxhash64AsHex**(data: * `Buffer` &#124; `Uint8Array` &#124; `string`*, seed: *`number`*): `string`
 
-*Defined in [xxhash/xxhash64/asHex.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/xxhash/xxhash64/asHex.ts#L24)*
+*Defined in [xxhash/xxhash64/asHex.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/xxhash/xxhash64/asHex.ts#L24)*
 
 *__name__*: xxhash64AsHex
 
diff --git a/docs/util-crypto/modules/_xxhash_xxhash64_asraw_.md b/docs/util-crypto/modules/_xxhash_xxhash64_asraw_.md
index 0b9c12016..265816000 100644
--- a/docs/util-crypto/modules/_xxhash_xxhash64_asraw_.md
+++ b/docs/util-crypto/modules/_xxhash_xxhash64_asraw_.md
@@ -8,7 +8,7 @@
 
 ▸ **xxhash64AsRaw**(data: * `Buffer` &#124; `Uint8Array` &#124; `string`*, seed: *`number`*): `string`
 
-*Defined in [xxhash/xxhash64/asRaw.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/xxhash/xxhash64/asRaw.ts#L22)*
+*Defined in [xxhash/xxhash64/asRaw.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/xxhash/xxhash64/asRaw.ts#L22)*
 
 *__name__*: xxhash64AsRaw
 
diff --git a/docs/util-crypto/modules/_xxhash_xxhash64_asvalue_.md b/docs/util-crypto/modules/_xxhash_xxhash64_asvalue_.md
index b907bf9ae..bfd79ecc4 100644
--- a/docs/util-crypto/modules/_xxhash_xxhash64_asvalue_.md
+++ b/docs/util-crypto/modules/_xxhash_xxhash64_asvalue_.md
@@ -8,7 +8,7 @@
 
 ▸ **xxhash64AsValue**(data: * `Buffer` &#124; `Uint8Array` &#124; `string`*, seed: *`number`*): `number`
 
-*Defined in [xxhash/xxhash64/asValue.ts:23](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-crypto/src/xxhash/xxhash64/asValue.ts#L23)*
+*Defined in [xxhash/xxhash64/asValue.ts:23](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-crypto/src/xxhash/xxhash64/asValue.ts#L23)*
 
 *__name__*: xxhash64AsValue
 
diff --git a/docs/util-rlp/modules/_decoder_decode_.md b/docs/util-rlp/modules/_decoder_decode_.md
index 601eb40f2..ccf48b289 100644
--- a/docs/util-rlp/modules/_decoder_decode_.md
+++ b/docs/util-rlp/modules/_decoder_decode_.md
@@ -8,7 +8,7 @@
 
 ▸ **decode**(input: *`Uint8Array`*): `DecodeOutput`
 
-*Defined in [decoder/decode.ts:28](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-rlp/src/decoder/decode.ts#L28)*
+*Defined in [decoder/decode.ts:28](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-rlp/src/decoder/decode.ts#L28)*
 
 **Parameters:**
 
diff --git a/docs/util-rlp/modules/_decoder_index_.md b/docs/util-rlp/modules/_decoder_index_.md
index 0d6e4da8b..a7aadbb2a 100644
--- a/docs/util-rlp/modules/_decoder_index_.md
+++ b/docs/util-rlp/modules/_decoder_index_.md
@@ -8,7 +8,7 @@
 
 ▸ **decoder**(input?: *`Uint8Array`*):  `Uint8Array` &#124; `Array`<`any`>
 
-*Defined in [decoder/index.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-rlp/src/decoder/index.ts#L24)*
+*Defined in [decoder/index.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-rlp/src/decoder/index.ts#L24)*
 
 *__name__*: decoder
 
diff --git a/docs/util-rlp/modules/_decoder_listlong_.md b/docs/util-rlp/modules/_decoder_listlong_.md
index 583845e88..d50958a0b 100644
--- a/docs/util-rlp/modules/_decoder_listlong_.md
+++ b/docs/util-rlp/modules/_decoder_listlong_.md
@@ -8,7 +8,7 @@
 
 ▸ **decodeListLong**(decode: *`DecodeFunc`*, input: *`Uint8Array`*): `DecodeOutput`
 
-*Defined in [decoder/listLong.ts:11](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-rlp/src/decoder/listLong.ts#L11)*
+*Defined in [decoder/listLong.ts:11](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-rlp/src/decoder/listLong.ts#L11)*
 
 **Parameters:**
 
diff --git a/docs/util-rlp/modules/_decoder_listshort_.md b/docs/util-rlp/modules/_decoder_listshort_.md
index e584dcb8d..f5a1f933e 100644
--- a/docs/util-rlp/modules/_decoder_listshort_.md
+++ b/docs/util-rlp/modules/_decoder_listshort_.md
@@ -8,7 +8,7 @@
 
 ▸ **decodeListShort**(decode: *`DecodeFunc`*, input: *`Uint8Array`*): `DecodeOutput`
 
-*Defined in [decoder/listShort.ts:7](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-rlp/src/decoder/listShort.ts#L7)*
+*Defined in [decoder/listShort.ts:7](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-rlp/src/decoder/listShort.ts#L7)*
 
 **Parameters:**
 
diff --git a/docs/util-rlp/modules/_decoder_number_.md b/docs/util-rlp/modules/_decoder_number_.md
index 4f23c4228..6555e8c8e 100644
--- a/docs/util-rlp/modules/_decoder_number_.md
+++ b/docs/util-rlp/modules/_decoder_number_.md
@@ -8,7 +8,7 @@
 
 ▸ **decodeNumber**(decode: *`DecodeFunc`*, input: *`Uint8Array`*): `DecodeOutput`
 
-*Defined in [decoder/number.ts:11](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-rlp/src/decoder/number.ts#L11)*
+*Defined in [decoder/number.ts:11](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-rlp/src/decoder/number.ts#L11)*
 
 **Parameters:**
 
diff --git a/docs/util-rlp/modules/_decoder_safeparseint_.md b/docs/util-rlp/modules/_decoder_safeparseint_.md
index 7be543a34..af8c0d447 100644
--- a/docs/util-rlp/modules/_decoder_safeparseint_.md
+++ b/docs/util-rlp/modules/_decoder_safeparseint_.md
@@ -8,7 +8,7 @@
 
 ▸ **safeParseInt**(input: *`Uint8Array`*): `number`
 
-*Defined in [decoder/safeParseInt.ts:7](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-rlp/src/decoder/safeParseInt.ts#L7)*
+*Defined in [decoder/safeParseInt.ts:7](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-rlp/src/decoder/safeParseInt.ts#L7)*
 
 **Parameters:**
 
diff --git a/docs/util-rlp/modules/_decoder_single_.md b/docs/util-rlp/modules/_decoder_single_.md
index 9a0f1354b..b569b17bc 100644
--- a/docs/util-rlp/modules/_decoder_single_.md
+++ b/docs/util-rlp/modules/_decoder_single_.md
@@ -8,7 +8,7 @@
 
 ▸ **decodeSingle**(decode: *`DecodeFunc`*, input: *`Uint8Array`*): `DecodeOutput`
 
-*Defined in [decoder/single.ts:7](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-rlp/src/decoder/single.ts#L7)*
+*Defined in [decoder/single.ts:7](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-rlp/src/decoder/single.ts#L7)*
 
 **Parameters:**
 
diff --git a/docs/util-rlp/modules/_decoder_string_.md b/docs/util-rlp/modules/_decoder_string_.md
index 38aeae910..66c67c12e 100644
--- a/docs/util-rlp/modules/_decoder_string_.md
+++ b/docs/util-rlp/modules/_decoder_string_.md
@@ -8,7 +8,7 @@
 
 ▸ **decodeString**(decode: *`DecodeFunc`*, input: *`Uint8Array`*): `DecodeOutput`
 
-*Defined in [decoder/string.ts:9](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-rlp/src/decoder/string.ts#L9)*
+*Defined in [decoder/string.ts:9](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-rlp/src/decoder/string.ts#L9)*
 
 **Parameters:**
 
diff --git a/docs/util-rlp/modules/_encoder_array_.md b/docs/util-rlp/modules/_encoder_array_.md
index 62a4ec8e8..448a67914 100644
--- a/docs/util-rlp/modules/_encoder_array_.md
+++ b/docs/util-rlp/modules/_encoder_array_.md
@@ -8,7 +8,7 @@
 
 ▸ **encodeArray**(encoder: *`EncodeFunc`*, input: *`any`*): `Uint8Array`
 
-*Defined in [encoder/array.ts:11](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-rlp/src/encoder/array.ts#L11)*
+*Defined in [encoder/array.ts:11](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-rlp/src/encoder/array.ts#L11)*
 
 **Parameters:**
 
diff --git a/docs/util-rlp/modules/_encoder_index_.md b/docs/util-rlp/modules/_encoder_index_.md
index 536f921e9..9739e62e9 100644
--- a/docs/util-rlp/modules/_encoder_index_.md
+++ b/docs/util-rlp/modules/_encoder_index_.md
@@ -8,7 +8,7 @@
 
 ▸ **encoder**(input: *`any`*): `Uint8Array`
 
-*Defined in [encoder/index.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-rlp/src/encoder/index.ts#L24)*
+*Defined in [encoder/index.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-rlp/src/encoder/index.ts#L24)*
 
 *__name__*: encoder
 
diff --git a/docs/util-rlp/modules/_encoder_length_.md b/docs/util-rlp/modules/_encoder_length_.md
index c97ebd098..29090bcb4 100644
--- a/docs/util-rlp/modules/_encoder_length_.md
+++ b/docs/util-rlp/modules/_encoder_length_.md
@@ -8,7 +8,7 @@
 
 ▸ **encodeLength**(length: *`number`*, offset: *`number`*): `Uint8Array`
 
-*Defined in [encoder/length.ts:7](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-rlp/src/encoder/length.ts#L7)*
+*Defined in [encoder/length.ts:7](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-rlp/src/encoder/length.ts#L7)*
 
 **Parameters:**
 
diff --git a/docs/util-rlp/modules/_encoder_tou8a_.md b/docs/util-rlp/modules/_encoder_tou8a_.md
index eaa5f3b1e..c654e0b18 100644
--- a/docs/util-rlp/modules/_encoder_tou8a_.md
+++ b/docs/util-rlp/modules/_encoder_tou8a_.md
@@ -8,7 +8,7 @@
 
 ▸ **toU8a**(value: *`any`*): `Uint8Array`
 
-*Defined in [encoder/toU8a.ts:39](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-rlp/src/encoder/toU8a.ts#L39)*
+*Defined in [encoder/toU8a.ts:39](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-rlp/src/encoder/toU8a.ts#L39)*
 
 **Parameters:**
 
diff --git a/docs/util-rlp/modules/_encoder_u8a_.md b/docs/util-rlp/modules/_encoder_u8a_.md
index 85c77787e..32c56cc30 100644
--- a/docs/util-rlp/modules/_encoder_u8a_.md
+++ b/docs/util-rlp/modules/_encoder_u8a_.md
@@ -8,7 +8,7 @@
 
 ▸ **encodeU8a**(encoder: *`EncodeFunc`*, input: *`Uint8Array`*): `Uint8Array`
 
-*Defined in [encoder/u8a.ts:11](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util-rlp/src/encoder/u8a.ts#L11)*
+*Defined in [encoder/u8a.ts:11](https://github.com/polkadot-js/common/blob/a9878a2/packages/util-rlp/src/encoder/u8a.ts#L11)*
 
 **Parameters:**
 
diff --git a/docs/util/classes/_ext_error_.exterror.md b/docs/util/classes/_ext_error_.exterror.md
index 1511df978..f2476acc5 100644
--- a/docs/util/classes/_ext_error_.exterror.md
+++ b/docs/util/classes/_ext_error_.exterror.md
@@ -34,7 +34,7 @@ throw new ExtError('some message', ExtError.CODES.METHOD_NOT_FOUND); // => error
 
 ⊕ **new ExtError**(message?: *`string`*, code?: *`number`*, data?: *`any`*): [ExtError](_ext_error_.exterror.md)
 
-*Defined in [ext/error.ts:44](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/ext/error.ts#L44)*
+*Defined in [ext/error.ts:44](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/ext/error.ts#L44)*
 
 **Parameters:**
 
@@ -56,7 +56,7 @@ ___
 
 **● code**: *`number`*
 
-*Defined in [ext/error.ts:36](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/ext/error.ts#L36)*
+*Defined in [ext/error.ts:36](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/ext/error.ts#L36)*
 
 ___
 <a id="data"></a>
@@ -65,7 +65,7 @@ ___
 
 **● data**: *`any`*
 
-*Defined in [ext/error.ts:38](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/ext/error.ts#L38)*
+*Defined in [ext/error.ts:38](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/ext/error.ts#L38)*
 
 ___
 <a id="message"></a>
@@ -76,7 +76,7 @@ ___
 
 *Overrides Error.message*
 
-*Defined in [ext/error.ts:40](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/ext/error.ts#L40)*
+*Defined in [ext/error.ts:40](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/ext/error.ts#L40)*
 
 ___
 <a id="name"></a>
@@ -87,7 +87,7 @@ ___
 
 *Overrides Error.name*
 
-*Defined in [ext/error.ts:42](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/ext/error.ts#L42)*
+*Defined in [ext/error.ts:42](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/ext/error.ts#L42)*
 
 ___
 <a id="stack"></a>
@@ -98,7 +98,7 @@ ___
 
 *Overrides Error.stack*
 
-*Defined in [ext/error.ts:44](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/ext/error.ts#L44)*
+*Defined in [ext/error.ts:44](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/ext/error.ts#L44)*
 
 ___
 <a id="error"></a>
@@ -119,7 +119,7 @@ ___
 
 **CODES**: *`object`*
 
-*Defined in [ext/error.ts:61](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/ext/error.ts#L61)*
+*Defined in [ext/error.ts:61](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/ext/error.ts#L61)*
 
 <a id="codes.assert"></a>
 
@@ -127,7 +127,7 @@ ___
 
 **● ASSERT**: *`number`* =  -90009
 
-*Defined in [ext/error.ts:62](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/ext/error.ts#L62)*
+*Defined in [ext/error.ts:62](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/ext/error.ts#L62)*
 
 ___
 <a id="codes.invalid_jsonrpc"></a>
@@ -136,7 +136,7 @@ ___
 
 **● INVALID_JSONRPC**: *`number`* =  -99998
 
-*Defined in [ext/error.ts:64](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/ext/error.ts#L64)*
+*Defined in [ext/error.ts:64](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/ext/error.ts#L64)*
 
 ___
 <a id="codes.method_not_found"></a>
@@ -145,7 +145,7 @@ ___
 
 **● METHOD_NOT_FOUND**: *`number`* =  -32601
 
-*Defined in [ext/error.ts:65](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/ext/error.ts#L65)*
+*Defined in [ext/error.ts:65](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/ext/error.ts#L65)*
 
 ___
 <a id="codes.unknown"></a>
@@ -154,7 +154,7 @@ ___
 
 **● UNKNOWN**: *`number`*
 
-*Defined in [ext/error.ts:63](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/ext/error.ts#L63)*
+*Defined in [ext/error.ts:63](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/ext/error.ts#L63)*
 
 ___
 
diff --git a/docs/util/index.html b/docs/util/index.html
index abf694a11..30dcbee81 100644
--- a/docs/util/index.html
+++ b/docs/util/index.html
@@ -416,7 +416,7 @@
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"util","level":"1.5","depth":1,"next":{"title":"util-crypto","level":"1.6","depth":1,"path":"util-crypto/README.md","ref":"util-crypto/README.md","articles":[]},"previous":{"title":"trie-hash","level":"1.4","depth":1,"path":"trie-hash/README.md","ref":"trie-hash/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"util/README.md","mtime":"2018-11-01T13:42:59.315Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-01T13:43:41.803Z"},"basePath":"..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"util","level":"1.5","depth":1,"next":{"title":"util-crypto","level":"1.6","depth":1,"path":"util-crypto/README.md","ref":"util-crypto/README.md","articles":[]},"previous":{"title":"trie-hash","level":"1.4","depth":1,"path":"trie-hash/README.md","ref":"trie-hash/README.md","articles":[]},"dir":"ltr"},"config":{"plugins":["include-codeblock","insert-logo-link","mermaid-gb3","-highlight","sunlight-highlighter"],"root":"docs","styles":{"website":"styles/website.css"},"pluginsConfig":{"insert-logo-link":{"src":"/common/logo.png","url":"https://polkadot.js.org"},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"fontsettings":{"theme":"white","family":"sans","size":2},"mermaid-gb3":{},"include-codeblock":{"check":false,"edit":false,"lang":"","fixlang":false,"template":"default","theme":"chrome","unindent":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"sunlight-highlighter":{"theme":"gitbook","lineNumbers":false}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Polkadot Common Book","gitbook":">=2.4.0"},"file":{"path":"util/README.md","mtime":"2018-11-10T10:41:11.303Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-10T10:41:56.704Z"},"basePath":"..","book":{"language":""}});
         });
     </script>
 </div>
diff --git a/docs/util/modules/_array_filter_.md b/docs/util/modules/_array_filter_.md
index ec6d871fc..c55e16e53 100644
--- a/docs/util/modules/_array_filter_.md
+++ b/docs/util/modules/_array_filter_.md
@@ -8,7 +8,7 @@
 
 ▸ **arrayFilter**(array: *`Array`<`any`>*, allowNulls?: *`boolean`*): `Array`<`any`>
 
-*Defined in [array/filter.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/array/filter.ts#L24)*
+*Defined in [array/filter.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/array/filter.ts#L24)*
 
 *__name__*: arrayFilter
 
diff --git a/docs/util/modules/_assert_.md b/docs/util/modules/_assert_.md
index c3f55d4e6..d9c90a0cc 100644
--- a/docs/util/modules/_assert_.md
+++ b/docs/util/modules/_assert_.md
@@ -8,7 +8,7 @@
 
 ▸ **assert**(test: *`any`*, message: * `string` &#124; `MessageFn`*, code?: *`number`*, data?: *`any`*): `boolean`
 
-*Defined in [assert.ts:27](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/assert.ts#L27)*
+*Defined in [assert.ts:27](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/assert.ts#L27)*
 
 *__name__*: assert
 
diff --git a/docs/util/modules/_bn_tobn_.md b/docs/util/modules/_bn_tobn_.md
index 54a7b64c4..fb3cd82bf 100644
--- a/docs/util/modules/_bn_tobn_.md
+++ b/docs/util/modules/_bn_tobn_.md
@@ -8,7 +8,7 @@
 
 ▸ **bnToBn**(value?: * `BN` &#124; `number`*): `BN`
 
-*Defined in [bn/toBn.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/bn/toBn.ts#L24)*
+*Defined in [bn/toBn.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/bn/toBn.ts#L24)*
 
 *__name__*: bnToBn
 
diff --git a/docs/util/modules/_bn_tohex_.md b/docs/util/modules/_bn_tohex_.md
index 52048504d..2cec2bdd2 100644
--- a/docs/util/modules/_bn_tohex_.md
+++ b/docs/util/modules/_bn_tohex_.md
@@ -8,7 +8,7 @@
 
 ▸ **bnToHex**(value?: * `BN` &#124; `number`*, bitLength?: *`number`*): `string`
 
-*Defined in [bn/toHex.ts:28](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/bn/toHex.ts#L28)*
+*Defined in [bn/toHex.ts:28](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/bn/toHex.ts#L28)*
 
 *__name__*: bnToHex
 
diff --git a/docs/util/modules/_bn_tou8a_.md b/docs/util/modules/_bn_tou8a_.md
index 3352f2fa8..c621e477f 100644
--- a/docs/util/modules/_bn_tou8a_.md
+++ b/docs/util/modules/_bn_tou8a_.md
@@ -8,7 +8,7 @@
 
 ▸ **bnToU8a**(value: * `BN` &#124; `number`*, bitLength: *`number`*, isLe: *`boolean`*): `Uint8Array`
 
-*Defined in [bn/toU8a.ts:26](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/bn/toU8a.ts#L26)*
+*Defined in [bn/toU8a.ts:26](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/bn/toU8a.ts#L26)*
 
 *__name__*: bnToU8a
 
diff --git a/docs/util/modules/_buffer_tou8a_.md b/docs/util/modules/_buffer_tou8a_.md
index ea9d21345..1f3dc3c0a 100644
--- a/docs/util/modules/_buffer_tou8a_.md
+++ b/docs/util/modules/_buffer_tou8a_.md
@@ -8,7 +8,7 @@
 
 ▸ **bufferToU8a**(buffer?: * `Buffer` &#124; `number`[]*): `Uint8Array`
 
-*Defined in [buffer/toU8a.ts:20](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/buffer/toU8a.ts#L20)*
+*Defined in [buffer/toU8a.ts:20](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/buffer/toU8a.ts#L20)*
 
 *__name__*: bufferToU8a
 
diff --git a/docs/util/modules/_hex_addprefix_.md b/docs/util/modules/_hex_addprefix_.md
index ba16acc99..13c1e6a7d 100644
--- a/docs/util/modules/_hex_addprefix_.md
+++ b/docs/util/modules/_hex_addprefix_.md
@@ -8,7 +8,7 @@
 
 ▸ **hexAddPrefix**(value: * `string` &#124; `null` &#124; `undefined`*): `string`
 
-*Defined in [hex/addPrefix.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/hex/addPrefix.ts#L22)*
+*Defined in [hex/addPrefix.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/hex/addPrefix.ts#L22)*
 
 *__name__*: hexAddPrefix
 
diff --git a/docs/util/modules/_hex_fixlength_.md b/docs/util/modules/_hex_fixlength_.md
index 0db976105..fbac66c14 100644
--- a/docs/util/modules/_hex_fixlength_.md
+++ b/docs/util/modules/_hex_fixlength_.md
@@ -8,7 +8,7 @@
 
 ▸ **hexFixLength**(value: *`string`*, bitLength?: *`number`*, withPadding?: *`boolean`*): `string`
 
-*Defined in [hex/fixLength.ts:25](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/hex/fixLength.ts#L25)*
+*Defined in [hex/fixLength.ts:25](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/hex/fixLength.ts#L25)*
 
 *__name__*: hexFixLength
 
diff --git a/docs/util/modules/_hex_hasprefix_.md b/docs/util/modules/_hex_hasprefix_.md
index a8e6f5aa8..8a343df12 100644
--- a/docs/util/modules/_hex_hasprefix_.md
+++ b/docs/util/modules/_hex_hasprefix_.md
@@ -8,7 +8,7 @@
 
 ▸ **hexHasPrefix**(value: * `string` &#124; `null` &#124; `undefined`*): `boolean`
 
-*Defined in [hex/hasPrefix.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/hex/hasPrefix.ts#L22)*
+*Defined in [hex/hasPrefix.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/hex/hasPrefix.ts#L22)*
 
 *__name__*: hexHasPrefix
 
diff --git a/docs/util/modules/_hex_stripprefix_.md b/docs/util/modules/_hex_stripprefix_.md
index 0111f9615..65e86d16c 100644
--- a/docs/util/modules/_hex_stripprefix_.md
+++ b/docs/util/modules/_hex_stripprefix_.md
@@ -8,7 +8,7 @@
 
 ▸ **hexStripPrefix**(value: * `string` &#124; `null` &#124; `undefined`*): `string`
 
-*Defined in [hex/stripPrefix.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/hex/stripPrefix.ts#L24)*
+*Defined in [hex/stripPrefix.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/hex/stripPrefix.ts#L24)*
 
 *__name__*: hexStripPrefix
 
diff --git a/docs/util/modules/_hex_tobn_.md b/docs/util/modules/_hex_tobn_.md
index 145ea6f34..916221074 100644
--- a/docs/util/modules/_hex_tobn_.md
+++ b/docs/util/modules/_hex_tobn_.md
@@ -8,7 +8,7 @@
 
 ▸ **hexToBn**(_value?: * `undefined` &#124; `string`*, isLe?: *`boolean`*): `BN`
 
-*Defined in [hex/toBn.ts:30](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/hex/toBn.ts#L30)*
+*Defined in [hex/toBn.ts:30](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/hex/toBn.ts#L30)*
 
 *__name__*: hexToBn
 
diff --git a/docs/util/modules/_hex_tonumber_.md b/docs/util/modules/_hex_tonumber_.md
index 3a57d099f..6a25021ee 100644
--- a/docs/util/modules/_hex_tonumber_.md
+++ b/docs/util/modules/_hex_tonumber_.md
@@ -8,7 +8,7 @@
 
 ▸ **hexToNumber**(value?: * `undefined` &#124; `string`*): `number`
 
-*Defined in [hex/toNumber.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/hex/toNumber.ts#L22)*
+*Defined in [hex/toNumber.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/hex/toNumber.ts#L22)*
 
 *__name__*: hexToNumber
 
diff --git a/docs/util/modules/_hex_tou8a_.md b/docs/util/modules/_hex_tou8a_.md
index 0579b24f9..7e12c0ead 100644
--- a/docs/util/modules/_hex_tou8a_.md
+++ b/docs/util/modules/_hex_tou8a_.md
@@ -8,7 +8,7 @@
 
 ▸ **hexToU8a**(_value?: * `string` &#124; `null`*, bitLength?: *`number`*): `Uint8Array`
 
-*Defined in [hex/toU8a.ts:25](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/hex/toU8a.ts#L25)*
+*Defined in [hex/toU8a.ts:25](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/hex/toU8a.ts#L25)*
 
 *__name__*: hexToU8a
 
diff --git a/docs/util/modules/_is_bn_.md b/docs/util/modules/_is_bn_.md
index ac396a358..5bc5ab654 100644
--- a/docs/util/modules/_is_bn_.md
+++ b/docs/util/modules/_is_bn_.md
@@ -8,7 +8,7 @@
 
 ▸ **isBn**(value: *`any`*): `boolean`
 
-*Defined in [is/bn.ts:23](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/is/bn.ts#L23)*
+*Defined in [is/bn.ts:23](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/is/bn.ts#L23)*
 
 *__name__*: isBn
 
diff --git a/docs/util/modules/_is_boolean_.md b/docs/util/modules/_is_boolean_.md
index d60fc10f1..a6b697f33 100644
--- a/docs/util/modules/_is_boolean_.md
+++ b/docs/util/modules/_is_boolean_.md
@@ -8,7 +8,7 @@
 
 ▸ **isBoolean**(value: *`any`*): `boolean`
 
-*Defined in [is/boolean.ts:20](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/is/boolean.ts#L20)*
+*Defined in [is/boolean.ts:20](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/is/boolean.ts#L20)*
 
 *__name__*: isBoolean
 
diff --git a/docs/util/modules/_is_buffer_.md b/docs/util/modules/_is_buffer_.md
index b1a6a67df..1fef8b5a6 100644
--- a/docs/util/modules/_is_buffer_.md
+++ b/docs/util/modules/_is_buffer_.md
@@ -8,7 +8,7 @@
 
 ▸ **isBuffer**(value: *`any`*): `boolean`
 
-*Defined in [is/buffer.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/is/buffer.ts#L22)*
+*Defined in [is/buffer.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/is/buffer.ts#L22)*
 
 *__name__*: isBuffer
 
diff --git a/docs/util/modules/_is_error_.md b/docs/util/modules/_is_error_.md
index 33bdbbfab..b071a20fa 100644
--- a/docs/util/modules/_is_error_.md
+++ b/docs/util/modules/_is_error_.md
@@ -8,7 +8,7 @@
 
 ▸ **isError**(value: *`any`*): `boolean`
 
-*Defined in [is/error.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/is/error.ts#L22)*
+*Defined in [is/error.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/is/error.ts#L22)*
 
 *__name__*: isError
 
diff --git a/docs/util/modules/_is_function_.md b/docs/util/modules/_is_function_.md
index 1027744e6..d55c6240a 100644
--- a/docs/util/modules/_is_function_.md
+++ b/docs/util/modules/_is_function_.md
@@ -8,7 +8,7 @@
 
 ▸ **isFunction**(value: *`any`*): `boolean`
 
-*Defined in [is/function.ts:20](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/is/function.ts#L20)*
+*Defined in [is/function.ts:20](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/is/function.ts#L20)*
 
 *__name__*: isFunction
 
diff --git a/docs/util/modules/_is_hex_.md b/docs/util/modules/_is_hex_.md
index c6aeffe39..f0a43318f 100644
--- a/docs/util/modules/_is_hex_.md
+++ b/docs/util/modules/_is_hex_.md
@@ -8,7 +8,7 @@
 
 ▸ **isHex**(_value: *`any`*, bitLength?: *`number`*, ignoreLength?: *`boolean`*): `boolean`
 
-*Defined in [is/hex.ts:25](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/is/hex.ts#L25)*
+*Defined in [is/hex.ts:25](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/is/hex.ts#L25)*
 
 *__name__*: isHex
 
diff --git a/docs/util/modules/_is_instanceof_.md b/docs/util/modules/_is_instanceof_.md
index 03ffa763f..7fa1c1546 100644
--- a/docs/util/modules/_is_instanceof_.md
+++ b/docs/util/modules/_is_instanceof_.md
@@ -8,7 +8,7 @@
 
 ▸ **isInstanceOf**(value: *`any`*, clazz: *`any`*): `boolean`
 
-*Defined in [is/instanceOf.ts:20](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/is/instanceOf.ts#L20)*
+*Defined in [is/instanceOf.ts:20](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/is/instanceOf.ts#L20)*
 
 *__name__*: isInstanceOf
 
diff --git a/docs/util/modules/_is_ip_.md b/docs/util/modules/_is_ip_.md
index e713dd6f8..4c95d02d2 100644
--- a/docs/util/modules/_is_ip_.md
+++ b/docs/util/modules/_is_ip_.md
@@ -8,7 +8,7 @@
 
 ▸ **isIp**(value: *`string`*, type?: *`IpTypes`*): `boolean`
 
-*Defined in [is/ip.ts:27](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/is/ip.ts#L27)*
+*Defined in [is/ip.ts:27](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/is/ip.ts#L27)*
 
 *__name__*: isIp
 
diff --git a/docs/util/modules/_is_null_.md b/docs/util/modules/_is_null_.md
index a2cd14882..557901b54 100644
--- a/docs/util/modules/_is_null_.md
+++ b/docs/util/modules/_is_null_.md
@@ -8,7 +8,7 @@
 
 ▸ **isNull**(value: *`any`*): `boolean`
 
-*Defined in [is/null.ts:20](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/is/null.ts#L20)*
+*Defined in [is/null.ts:20](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/is/null.ts#L20)*
 
 *__name__*: isNull
 
diff --git a/docs/util/modules/_is_number_.md b/docs/util/modules/_is_number_.md
index b7c1a8667..4e1b352fc 100644
--- a/docs/util/modules/_is_number_.md
+++ b/docs/util/modules/_is_number_.md
@@ -8,7 +8,7 @@
 
 ▸ **isNumber**(value: *`any`*): `boolean`
 
-*Defined in [is/number.ts:20](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/is/number.ts#L20)*
+*Defined in [is/number.ts:20](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/is/number.ts#L20)*
 
 *__name__*: isNumber
 
diff --git a/docs/util/modules/_is_object_.md b/docs/util/modules/_is_object_.md
index 6e3619841..8a84ddf2f 100644
--- a/docs/util/modules/_is_object_.md
+++ b/docs/util/modules/_is_object_.md
@@ -8,7 +8,7 @@
 
 ▸ **isObject**(value: *`any`*): `boolean`
 
-*Defined in [is/object.ts:25](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/is/object.ts#L25)*
+*Defined in [is/object.ts:25](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/is/object.ts#L25)*
 
 *__name__*: isObject
 
diff --git a/docs/util/modules/_is_observable_.md b/docs/util/modules/_is_observable_.md
index 97abaa328..1b163e6f1 100644
--- a/docs/util/modules/_is_observable_.md
+++ b/docs/util/modules/_is_observable_.md
@@ -8,7 +8,7 @@
 
 ▸ **isObservable**(value: *`any`*): `boolean`
 
-*Defined in [is/observable.ts:27](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/is/observable.ts#L27)*
+*Defined in [is/observable.ts:27](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/is/observable.ts#L27)*
 
 *__name__*: isBObservable
 
diff --git a/docs/util/modules/_is_string_.md b/docs/util/modules/_is_string_.md
index a8a33cfed..67310ccd6 100644
--- a/docs/util/modules/_is_string_.md
+++ b/docs/util/modules/_is_string_.md
@@ -8,7 +8,7 @@
 
 ▸ **isString**(value: *`any`*): `boolean`
 
-*Defined in [is/string.ts:20](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/is/string.ts#L20)*
+*Defined in [is/string.ts:20](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/is/string.ts#L20)*
 
 *__name__*: isString
 
diff --git a/docs/util/modules/_is_u8a_.md b/docs/util/modules/_is_u8a_.md
index ce5962e1d..ff02e7b1a 100644
--- a/docs/util/modules/_is_u8a_.md
+++ b/docs/util/modules/_is_u8a_.md
@@ -8,7 +8,7 @@
 
 ▸ **isU8a**(value: *`any`*): `boolean`
 
-*Defined in [is/u8a.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/is/u8a.ts#L22)*
+*Defined in [is/u8a.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/is/u8a.ts#L22)*
 
 *__name__*: isU8a
 
diff --git a/docs/util/modules/_is_undefined_.md b/docs/util/modules/_is_undefined_.md
index 7a6244e5d..8d9a407a7 100644
--- a/docs/util/modules/_is_undefined_.md
+++ b/docs/util/modules/_is_undefined_.md
@@ -8,7 +8,7 @@
 
 ▸ **isUndefined**(value: *`any`*): `boolean`
 
-*Defined in [is/undefined.ts:20](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/is/undefined.ts#L20)*
+*Defined in [is/undefined.ts:20](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/is/undefined.ts#L20)*
 
 *__name__*: isUndefined
 
diff --git a/docs/util/modules/_logger_.md b/docs/util/modules/_logger_.md
index 5ab94f918..c751af2b2 100644
--- a/docs/util/modules/_logger_.md
+++ b/docs/util/modules/_logger_.md
@@ -8,7 +8,7 @@
 
 ▸ **format**(value: *`any`*): `any`
 
-*Defined in [logger.ts:36](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/logger.ts#L36)*
+*Defined in [logger.ts:36](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/logger.ts#L36)*
 
 **Parameters:**
 
@@ -25,7 +25,7 @@ ___
 
 ▸ **logger**(_type: *`string`*): `Logger`
 
-*Defined in [logger.ts:105](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/logger.ts#L105)*
+*Defined in [logger.ts:105](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/logger.ts#L105)*
 
 *__name__*: Logger
 
diff --git a/docs/util/modules/_number_tohex_.md b/docs/util/modules/_number_tohex_.md
index 7aa7ba30e..92245a2ea 100644
--- a/docs/util/modules/_number_tohex_.md
+++ b/docs/util/modules/_number_tohex_.md
@@ -8,7 +8,7 @@
 
 ▸ **numberToHex**(value?: * `undefined` &#124; `number`*, bitLength?: *`number`*): `string`
 
-*Defined in [number/toHex.ts:25](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/number/toHex.ts#L25)*
+*Defined in [number/toHex.ts:25](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/number/toHex.ts#L25)*
 
 *__name__*: numberToHex
 
diff --git a/docs/util/modules/_number_tou8a_.md b/docs/util/modules/_number_tou8a_.md
index 68e6d4245..1ba7e8e85 100644
--- a/docs/util/modules/_number_tou8a_.md
+++ b/docs/util/modules/_number_tou8a_.md
@@ -8,7 +8,7 @@
 
 ▸ **numberToU8a**(value?: * `undefined` &#124; `number`*, bitLength?: *`number`*): `Uint8Array`
 
-*Defined in [number/toU8a.ts:23](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/number/toU8a.ts#L23)*
+*Defined in [number/toU8a.ts:23](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/number/toU8a.ts#L23)*
 
 *__name__*: numberToU8a
 
diff --git a/docs/util/modules/_promisify_.md b/docs/util/modules/_promisify_.md
index 1c017668c..9ad031c7c 100644
--- a/docs/util/modules/_promisify_.md
+++ b/docs/util/modules/_promisify_.md
@@ -8,7 +8,7 @@
 
 ▸ **promisify**(self: *`any`*, fn: *`Function`*, ...params: *`Array`<`any`>*): `Promise`<`any`>
 
-*Defined in [promisify.ts:21](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/promisify.ts#L21)*
+*Defined in [promisify.ts:21](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/promisify.ts#L21)*
 
 *__name__*: promisify
 
diff --git a/docs/util/modules/_string_lowerfirst_.md b/docs/util/modules/_string_lowerfirst_.md
index 1a5b2b263..1dd784c91 100644
--- a/docs/util/modules/_string_lowerfirst_.md
+++ b/docs/util/modules/_string_lowerfirst_.md
@@ -8,7 +8,7 @@
 
 ▸ **stringLowerFirst**(_value: *`string`*): `string`
 
-*Defined in [string/lowerFirst.ts:23](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/string/lowerFirst.ts#L23)*
+*Defined in [string/lowerFirst.ts:23](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/string/lowerFirst.ts#L23)*
 
 *__name__*: stringLowerFirst
 
diff --git a/docs/util/modules/_string_shorten_.md b/docs/util/modules/_string_shorten_.md
index d0038de55..fc9481d8d 100644
--- a/docs/util/modules/_string_shorten_.md
+++ b/docs/util/modules/_string_shorten_.md
@@ -8,7 +8,7 @@
 
 ▸ **stringShorten**(_value: *`any`*, prefixLength?: *`number`*): `string`
 
-*Defined in [string/shorten.ts:20](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/string/shorten.ts#L20)*
+*Defined in [string/shorten.ts:20](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/string/shorten.ts#L20)*
 
 *__name__*: stringShorten
 
diff --git a/docs/util/modules/_string_tou8a_.md b/docs/util/modules/_string_tou8a_.md
index e6af5c9a0..019a88ae3 100644
--- a/docs/util/modules/_string_tou8a_.md
+++ b/docs/util/modules/_string_tou8a_.md
@@ -8,7 +8,7 @@
 
 ▸ **stringToU8a**(value?: * `undefined` &#124; `string`*): `Uint8Array`
 
-*Defined in [string/toU8a.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/string/toU8a.ts#L24)*
+*Defined in [string/toU8a.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/string/toU8a.ts#L24)*
 
 *__name__*: stringToU8a
 
diff --git a/docs/util/modules/_string_upperfirst_.md b/docs/util/modules/_string_upperfirst_.md
index 1bec50128..8c41feebd 100644
--- a/docs/util/modules/_string_upperfirst_.md
+++ b/docs/util/modules/_string_upperfirst_.md
@@ -8,7 +8,7 @@
 
 ▸ **stringUpperFirst**(_value: *`string`*): `string`
 
-*Defined in [string/upperFirst.ts:23](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/string/upperFirst.ts#L23)*
+*Defined in [string/upperFirst.ts:23](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/string/upperFirst.ts#L23)*
 
 *__name__*: stringUpperFirst
 
diff --git a/docs/util/modules/_syncify_.md b/docs/util/modules/_syncify_.md
index 74057d2c2..c0e2205a4 100644
--- a/docs/util/modules/_syncify_.md
+++ b/docs/util/modules/_syncify_.md
@@ -8,7 +8,7 @@
 
 ▸ **syncify**(promise: *`Promise`<`any`>*): `any`
 
-*Defined in [syncify.ts:11](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/syncify.ts#L11)*
+*Defined in [syncify.ts:11](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/syncify.ts#L11)*
 
 **Parameters:**
 
diff --git a/docs/util/modules/_u8a_concat_.md b/docs/util/modules/_u8a_concat_.md
index e6e14458e..0e97dd392 100644
--- a/docs/util/modules/_u8a_concat_.md
+++ b/docs/util/modules/_u8a_concat_.md
@@ -8,7 +8,7 @@
 
 ▸ **u8aConcat**(..._list: *`Array`< `Uint8Array` &#124; `string`>*): `Uint8Array`
 
-*Defined in [u8a/concat.ts:25](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/u8a/concat.ts#L25)*
+*Defined in [u8a/concat.ts:25](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/u8a/concat.ts#L25)*
 
 *__name__*: u8aConcat
 
diff --git a/docs/util/modules/_u8a_fixlength_.md b/docs/util/modules/_u8a_fixlength_.md
index 570496a9c..f14f286b4 100644
--- a/docs/util/modules/_u8a_fixlength_.md
+++ b/docs/util/modules/_u8a_fixlength_.md
@@ -8,7 +8,7 @@
 
 ▸ **u8aFixLength**(value: *`Uint8Array`*, bitLength?: *`number`*, atStart?: *`boolean`*): `Uint8Array`
 
-*Defined in [u8a/fixLength.ts:22](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/u8a/fixLength.ts#L22)*
+*Defined in [u8a/fixLength.ts:22](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/u8a/fixLength.ts#L22)*
 
 *__name__*: u8aFixLength
 
diff --git a/docs/util/modules/_u8a_tobn_.md b/docs/util/modules/_u8a_tobn_.md
index 1d7112026..ae4747d6f 100644
--- a/docs/util/modules/_u8a_tobn_.md
+++ b/docs/util/modules/_u8a_tobn_.md
@@ -8,7 +8,7 @@
 
 ▸ **u8aToBn**(value: *`Uint8Array`*, isLe: *`boolean`*): `BN`
 
-*Defined in [u8a/toBn.ts:25](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/u8a/toBn.ts#L25)*
+*Defined in [u8a/toBn.ts:25](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/u8a/toBn.ts#L25)*
 
 *__name__*: u8aToBn
 
diff --git a/docs/util/modules/_u8a_tobuffer_.md b/docs/util/modules/_u8a_tobuffer_.md
index 55340166c..74ac21516 100644
--- a/docs/util/modules/_u8a_tobuffer_.md
+++ b/docs/util/modules/_u8a_tobuffer_.md
@@ -8,7 +8,7 @@
 
 ▸ **u8aToBuffer**(value?: *`Uint8Array`*): `Buffer`
 
-*Defined in [u8a/toBuffer.ts:20](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/u8a/toBuffer.ts#L20)*
+*Defined in [u8a/toBuffer.ts:20](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/u8a/toBuffer.ts#L20)*
 
 *__name__*: u8aToBuffer
 
diff --git a/docs/util/modules/_u8a_tohex_.md b/docs/util/modules/_u8a_tohex_.md
index 13c75c4cf..9daf16633 100644
--- a/docs/util/modules/_u8a_tohex_.md
+++ b/docs/util/modules/_u8a_tohex_.md
@@ -8,7 +8,7 @@
 
 ▸ **u8aToHex**(value?: * `Uint8Array` &#124; `null`*, bitLength?: *`number`*, isPrefixed?: *`boolean`*): `string`
 
-*Defined in [u8a/toHex.ts:20](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/u8a/toHex.ts#L20)*
+*Defined in [u8a/toHex.ts:20](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/u8a/toHex.ts#L20)*
 
 *__name__*: u8aToHex
 
diff --git a/docs/util/modules/_u8a_tostring_.md b/docs/util/modules/_u8a_tostring_.md
index 2b0c9e728..bd9cc622f 100644
--- a/docs/util/modules/_u8a_tostring_.md
+++ b/docs/util/modules/_u8a_tostring_.md
@@ -8,7 +8,7 @@
 
 ▸ **u8aToString**(value?: *`Uint8Array`*): `string`
 
-*Defined in [u8a/toString.ts:24](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/u8a/toString.ts#L24)*
+*Defined in [u8a/toString.ts:24](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/u8a/toString.ts#L24)*
 
 *__name__*: u8aToString
 
diff --git a/docs/util/modules/_u8a_tou8a_.md b/docs/util/modules/_u8a_tou8a_.md
index b99b359d8..aea85437b 100644
--- a/docs/util/modules/_u8a_tou8a_.md
+++ b/docs/util/modules/_u8a_tou8a_.md
@@ -8,7 +8,7 @@
 
 ▸ **u8aToU8a**(value?: * `Array`<`number`> &#124; `Buffer` &#124; `Uint8Array` &#124; `string` &#124; `null`*): `Uint8Array`
 
-*Defined in [u8a/toU8a.ts:28](https://github.com/polkadot-js/common/blob/0ddac0a/packages/util/src/u8a/toU8a.ts#L28)*
+*Defined in [u8a/toU8a.ts:28](https://github.com/polkadot-js/common/blob/a9878a2/packages/util/src/u8a/toU8a.ts#L28)*
 
 *__name__*: u8aToU8a
 
diff --git a/lerna.json b/lerna.json
index 63053de89..674ed53f8 100644
--- a/lerna.json
+++ b/lerna.json
@@ -9,5 +9,5 @@
   "packages": [
     "packages/*"
   ],
-  "version": "0.32.12"
+  "version": "0.32.13"
 }
diff --git a/package.json b/package.json
index b2189019c..1a1e9563b 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,5 @@
 {
-  "version": "0.32.12",
+  "version": "0.32.13",
   "private": true,
   "engines": {
     "node": "^10.13.0",
diff --git a/packages/db/package.json b/packages/db/package.json
index 647e226c9..ebd2db7ce 100644
--- a/packages/db/package.json
+++ b/packages/db/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/db",
-  "version": "0.32.12",
+  "version": "0.32.13",
   "description": "Implementation of a basic sync in-memory and on-disk databases with overlays",
   "main": "index.js",
   "keywords": [
@@ -29,8 +29,8 @@
   "homepage": "https://github.com/polkadot-js/common/tree/master/packages/db#readme",
   "dependencies": {
     "@babel/runtime": "^7.1.2",
-    "@polkadot/trie-hash": "^0.32.12",
-    "@polkadot/util": "^0.32.12",
+    "@polkadot/trie-hash": "^0.32.13",
+    "@polkadot/util": "^0.32.13",
     "@types/mkdirp": "^0.5.2",
     "@types/snappy": "^6.0.0",
     "lru_map": "^0.3.3",
diff --git a/packages/keyring/package.json b/packages/keyring/package.json
index fe78ab40e..3b03b9e2e 100644
--- a/packages/keyring/package.json
+++ b/packages/keyring/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/keyring",
-  "version": "0.32.12",
+  "version": "0.32.13",
   "description": "Keyring management",
   "main": "index.js",
   "engines": {
@@ -31,8 +31,8 @@
   "homepage": "https://github.com/polkadot-js/common/tree/master/packages/keyring#readme",
   "dependencies": {
     "@babel/runtime": "^7.1.2",
-    "@polkadot/util": "^0.32.12",
-    "@polkadot/util-crypto": "^0.32.12",
+    "@polkadot/util": "^0.32.13",
+    "@polkadot/util-crypto": "^0.32.13",
     "@types/bs58": "^3.0.30",
     "bs58": "^4.0.1"
   }
diff --git a/packages/trie-db/package.json b/packages/trie-db/package.json
index b94cac82a..061b814ec 100644
--- a/packages/trie-db/package.json
+++ b/packages/trie-db/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/trie-db",
-  "version": "0.32.12",
+  "version": "0.32.13",
   "description": "This is an implementation of the modified merkle patricia tree as specified in Ethereum's yellow paper, adapted for Polkadot",
   "main": "index.js",
   "keywords": [
@@ -29,11 +29,11 @@
   "homepage": "https://github.com/polkadot-js/common/tree/master/packages/trie-db#readme",
   "dependencies": {
     "@babel/runtime": "^7.1.2",
-    "@polkadot/db": "^0.32.12",
-    "@polkadot/trie-hash": "^0.32.12",
-    "@polkadot/util": "^0.32.12",
-    "@polkadot/util-crypto": "^0.32.12",
-    "@polkadot/util-rlp": "^0.32.12"
+    "@polkadot/db": "^0.32.13",
+    "@polkadot/trie-hash": "^0.32.13",
+    "@polkadot/util": "^0.32.13",
+    "@polkadot/util-crypto": "^0.32.13",
+    "@polkadot/util-rlp": "^0.32.13"
   },
   "devDependencies": {
     "ethereumjs-testing": "1.0.4"
diff --git a/packages/trie-hash/package.json b/packages/trie-hash/package.json
index cc7e0137d..87e2209d4 100644
--- a/packages/trie-hash/package.json
+++ b/packages/trie-hash/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/trie-hash",
-  "version": "0.32.12",
+  "version": "0.32.13",
   "description": "Creation of triehash values",
   "main": "index.js",
   "keywords": [
@@ -29,8 +29,8 @@
   "homepage": "https://github.com/polkadot-js/common/tree/master/packages/trie-hash#readme",
   "dependencies": {
     "@babel/runtime": "^7.1.2",
-    "@polkadot/util": "^0.32.12",
-    "@polkadot/util-crypto": "^0.32.12",
-    "@polkadot/util-rlp": "^0.32.12"
+    "@polkadot/util": "^0.32.13",
+    "@polkadot/util-crypto": "^0.32.13",
+    "@polkadot/util-rlp": "^0.32.13"
   }
 }
diff --git a/packages/util-crypto/package.json b/packages/util-crypto/package.json
index edb672281..0a6bd256c 100644
--- a/packages/util-crypto/package.json
+++ b/packages/util-crypto/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/util-crypto",
-  "version": "0.32.12",
+  "version": "0.32.13",
   "description": "A collection of useful crypto utilities for @polkadot",
   "main": "index.js",
   "keywords": [
@@ -29,7 +29,7 @@
   "homepage": "https://github.com/polkadot-js/common/tree/master/packages/util-crypto#readme",
   "dependencies": {
     "@babel/runtime": "^7.1.2",
-    "@polkadot/util": "^0.32.12",
+    "@polkadot/util": "^0.32.13",
     "@types/bip39": "^2.4.0",
     "bip39": "^2.5.0",
     "blakejs": "^1.1.0",
diff --git a/packages/util-rlp/package.json b/packages/util-rlp/package.json
index 105e0832e..c5956803d 100644
--- a/packages/util-rlp/package.json
+++ b/packages/util-rlp/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/util-rlp",
-  "version": "0.32.12",
+  "version": "0.32.13",
   "description": "RLP encoding and decoding",
   "main": "index.js",
   "keywords": [
@@ -31,7 +31,7 @@
   "homepage": "https://github.com/polkadot-js/common/tree/master/packages/trie-hash#readme",
   "dependencies": {
     "@babel/runtime": "^7.1.2",
-    "@polkadot/util": "^0.32.12"
+    "@polkadot/util": "^0.32.13"
   },
   "devDependencies": {
     "ethereumjs-testing": "1.0.4"
diff --git a/packages/util/package.json b/packages/util/package.json
index 4a761c637..9194f1e38 100644
--- a/packages/util/package.json
+++ b/packages/util/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/util",
-  "version": "0.32.12",
+  "version": "0.32.13",
   "description": "A collection of useful utilities for @polkadot",
   "main": "index.js",
   "keywords": [