# Hierarchy

**DeriveCustomMethod**

# Callable
▸ **__call**(api: *`ApiInterface$Rx`*): `function`

*Defined in [index.ts:27](https://github.com/polkadot-js/api/blob/f807a93/packages/api-derive/src/index.ts#L27)*

**Parameters:**

| Name | Type |
| ------ | ------ |
| api | `ApiInterface$Rx` |

**Returns:** `function`