# Functions

<a id="encodeaux"></a>

##  encodeAux

▸ **encodeAux**(pairs: *`Trie$Pairs`*, preLength: *`number`*):  `Uint8Array` &#124; `any`[]

*Defined in [encode/aux.ts:12](https://github.com/polkadot-js/common/blob/02d4155/packages/trie-hash/src/encode/aux.ts#L12)*

**Parameters:**

| Param | Type |
| ------ | ------ |
| pairs | `Trie$Pairs` |
| preLength | `number` |

**Returns:**  `Uint8Array` &#124; `any`[]

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