[Swift4] Does generator generate error responses for requests?

Created by: andreyshade

Description

When I tried to generate swift client for yaml file contains different types of responses. For example:

 responses:
        '200':
          description: OK
        '400':
          description: Bad request. User ID must be an integer and larger than 0.
        '401':
          description: Authorization information is missing or invalid.
        '404':
          description: A user with the specified ID was not found.
        '5XX':
          description: Unexpected error.

It will generate only 200 response. How to generate another responses?