Alias &[u8] to Bytes (#1171)

* Alias &[u8] to Bytes

* Add metadata, fix RegEx for &[u8]

packages/types/src/Metadata/v6/latest.substrate.v6.json

@@ -1399,6 +1399,46 @@
                 " The queued keys for the next session. When the next session begins, these keys",
                 " will be used to determine the validator's session keys."
               ]
+            },
+            {
+              "name": "NextKeys",
+              "modifier": "Optional",
+              "type": {
+                "DoubleMapType": {
+                  "hasher": "Twox64Concat",
+                  "key1": "Bytes",
+                  "key2": "ValidatorId",
+                  "value": "Keys",
+                  "key2Hasher": "Blake2_256"
+                }
+              },
+              "fallback": "0x00",
+              "documentation": [
+                " The next session keys for a validator.",
+                "",
+                " The first key is always `DEDUP_KEY_PREFIX` to have all the data in the same branch of",
+                " the trie. Having all data in the same branch should prevent slowing down other queries."
+              ]
+            },
+            {
+              "name": "KeyOwner",
+              "modifier": "Optional",
+              "type": {
+                "DoubleMapType": {
+                  "hasher": "Twox64Concat",
+                  "key1": "Bytes",
+                  "key2": "(KeyTypeId,Bytes)",
+                  "value": "ValidatorId",
+                  "key2Hasher": "Blake2_256"
+                }
+              },
+              "fallback": "0x00",
+              "documentation": [
+                " The owner of a key. The second key is the `KeyTypeId` + the encoded key.",
+                "",
+                " The first key is always `DEDUP_KEY_PREFIX` to have all the data in the same branch of",
+                " the trie. Having all data in the same branch should prevent slowing down other queries."
+              ]
             }
           ],
           "calls": [
@@ -1440,7 +1480,17 @@
               ]
             }
           ],
-          "constants": []
+          "constants": [
+            {
+              "name": "DEDUP_KEY_PREFIX",
+              "type": "Bytes",
+              "value": "0x343a73657373696f6e3a6b657973",
+              "documentation": [
+                " Used as first key for `NextKeys` and `KeyOwner` to put all the data into the same branch",
+                " of the trie."
+              ]
+            }
+          ]
         },
         {
           "name": "democracy",
@@ -3090,6 +3140,22 @@
                 " increment step `t`. 0 will result in no weight being added at all (normal",
                 " approval voting). A reasonable default value is 24."
               ]
+            },
+            {
+              "name": "VOTER_SET_SIZE",
+              "type": "u32",
+              "value": "0x40000000",
+              "documentation": [
+                " The chunk size of the voter vector."
+              ]
+            },
+            {
+              "name": "APPROVAL_SET_SIZE",
+              "type": "u32",
+              "value": "0x08000000",
+              "documentation": [
+                " The chunk size of the approval vector."
+              ]
             }
           ]
         },

packages/types/src/primitive/Type.ts

@@ -57,6 +57,8 @@ export default class Type extends Text {
       Type._alias('Compact<Index>', 'IndexCompact'),
       // alias Vec<u8> -> Bytes
       Type._alias('Vec<u8>', 'Bytes'),
+      // alias &[u8] -> Bytes
+      Type._alias('&\\[u8\\]', 'Bytes'),
       // alias RawAddress -> Address
       Type._alias('RawAddress', 'Address'),
       // alias Lookup::Source to Address (_could_ be AccountId on certain chains)

packages/types/src/srml/session/definitions.ts

@@ -9,6 +9,9 @@ export default {
     SessionKeys: {
       ed25519: 'SessionKey'
     },
-    Keys: 'SessionKeys'
+    Keys: 'SessionKeys',
+
+    // this needs to be moved to primitives (runtime, support)
+    KeyTypeId: 'u32'
   }
 };