**PROTOCOL**

# `RestlerErrorDecodable`

A protocol for the decodable error for Restler framework.

## Methods
### `init(response:)`

The initializer for the error.

Returning nil in this initializer means to the Restler framework, that decoding has failed.
So the error won't be decoded if the init returns nil.

- Parameters:
  - response: Response of the failed request.