I'm submitting a...

[ ] Regression 

Bug Report

Current behavior

Adding the following decorator, where status is optional according to the TS typings, produces an open API spec with an undefined response code. This causes issues with the generated docs, as well as code generators that consume open API.

  @ApiResponse({
    description:
      'Updates a Cat',
  })

The open API spec generated looks s

In the current version of the pynest microcircuit (implementation of the Potjans and Diesmann 2014 model) the error/warning messages are directly printed to the terminal.

Using the python warning package should probably be the preferred option.