# Index

### Interfaces

* [Derive](../interfaces/_index_.derive.md)
* [DeriveCustom](../interfaces/_index_.derivecustom.md)
* [DeriveCustomMethod](../interfaces/_index_.derivecustommethod.md)

### Functions

* [decorateDerive](_index_.md#decoratederive)

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# Functions

<a id="decoratederive"></a>

##  decorateDerive

▸ **decorateDerive**(api: *`ApiInterface$Rx`*, custom?: *[DeriveCustom](../interfaces/_index_.derivecustom.md)*): [Derive](../interfaces/_index_.derive.md)

*Defined in [index.ts:65](https://github.com/polkadot-js/api/blob/0b9484f/packages/api-derive/src/index.ts#L65)*

**Parameters:**

| Name | Type | Default value |
| ------ | ------ | ------ |
| api | `ApiInterface$Rx` | - |
| `Default value` custom | [DeriveCustom](../interfaces/_index_.derivecustom.md) |  {} |

**Returns:** [Derive](../interfaces/_index_.derive.md)

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