Pulp

As a result of this, the bindings generated from the OpenAPI schema produce the following error:

>>> api.tasks_read('/pulp/api/v3/tasks/487f9f07-5056-413f-a7f6-1a59117e2b66/')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/vagrant/.virtualenvs/pulp/lib64/python3.6/site-packages/my_pulp3_client/api/pulp_api.py", line 7533, in tasks_read
    (data) = self.tasks_read_with_http_info(task_href, **kwargs)  # noqa: E501
  File "/home/vagrant/.virtualenvs/pulp/lib64/python3.6/site-packages/my_pulp3_client/api/pulp_api.py", line 7611, in tasks_read_with_http_info
    collection_formats=collection_formats)
  File "/home/vagrant/.virtualenvs/pulp/lib64/python3.6/site-packages/my_pulp3_client/api_client.py", line 322, in call_api
    _preload_content, _request_timeout)
  File "/home/vagrant/.virtualenvs/pulp/lib64/python3.6/site-packages/my_pulp3_client/api_client.py", line 161, in __call_api
    return_data = self.deserialize(response_data, response_type)
  File "/home/vagrant/.virtualenvs/pulp/lib64/python3.6/site-packages/my_pulp3_client/api_client.py", line 233, in deserialize
    return self.__deserialize(data, response_type)
  File "/home/vagrant/.virtualenvs/pulp/lib64/python3.6/site-packages/my_pulp3_client/api_client.py", line 272, in __deserialize
    return self.__deserialize_model(data, klass)
  File "/home/vagrant/.virtualenvs/pulp/lib64/python3.6/site-packages/my_pulp3_client/api_client.py", line 613, in __deserialize_model
    kwargs[attr] = self.__deserialize(value, attr_type)
  File "/home/vagrant/.virtualenvs/pulp/lib64/python3.6/site-packages/my_pulp3_client/api_client.py", line 250, in __deserialize
    for sub_data in data]
  File "/home/vagrant/.virtualenvs/pulp/lib64/python3.6/site-packages/my_pulp3_client/api_client.py", line 250, in <listcomp>
    for sub_data in data]
  File "/home/vagrant/.virtualenvs/pulp/lib64/python3.6/site-packages/my_pulp3_client/api_client.py", line 272, in __deserialize
    return self.__deserialize_model(data, klass)
  File "/home/vagrant/.virtualenvs/pulp/lib64/python3.6/site-packages/my_pulp3_client/api_client.py", line 615, in __deserialize_model
    instance = klass(**kwargs)
  File "/home/vagrant/.virtualenvs/pulp/lib64/python3.6/site-packages/my_pulp3_client/models/progress_report.py", line 71, in __init__
    self.suffix = suffix
  File "/home/vagrant/.virtualenvs/pulp/lib64/python3.6/site-packages/my_pulp3_client/models/progress_report.py", line 192, in suffix
    raise ValueError("Invalid value for `suffix`, length must be greater than or equal to `1`")  # noqa: E501
ValueError: Invalid value for `suffix`, length must be greater than or equal to `1`

The serializer needs to define 'allow_blank=True' for the suffix field.