python-zaqarclient gate broken due to failing functional tests

This and 19 other tests are failing on any change in master right now:

ERROR: tests.functional.queues.v1.test_pool.QueuesV1_1PoolHttpFunctionalTest.test_pool_get
2019-07-05 21:42:38.989 | ----------------------------------------------------------------------
2019-07-05 21:42:38.991 | _StringException: Empty attachments:
2019-07-05 21:42:38.993 | pythonlogging:'zaqar'
2019-07-05 21:42:38.996 | stderr
2019-07-05 21:42:38.998 |
2019-07-05 21:42:39.000 | Traceback (most recent call last):
2019-07-05 21:42:39.002 | File "/opt/stack/new/python-zaqarclient/zaqarclient/tests/queues/pool.py", line 135, in test_pool_get
2019-07-05 21:42:39.005 | pool = self.client.pool('FuncTestPool', **pool_data)
2019-07-05 21:42:39.008 | File "/opt/stack/new/python-zaqarclient/zaqarclient/queues/v1/client.py", line 140, in pool
2019-07-05 21:42:39.010 | return pool.Pool(self, ref, **kwargs)
2019-07-05 21:42:39.012 | File "/opt/stack/new/python-zaqarclient/zaqarclient/queues/v1/pool.py", line 33, in __init__
2019-07-05 21:42:39.014 | self.ensure_exists()
2019-07-05 21:42:39.016 | File "/opt/stack/new/python-zaqarclient/zaqarclient/queues/v1/pool.py", line 57, in ensure_exists
2019-07-05 21:42:39.018 | core.pool_create(trans, req, self.name, data)
2019-07-05 21:42:39.021 | File "/opt/stack/new/python-zaqarclient/zaqarclient/queues/v1/core.py", line 480, in pool_create
2019-07-05 21:42:39.023 | transport.send(request)
2019-07-05 21:42:39.025 | File "/opt/stack/new/python-zaqarclient/zaqarclient/transport/http.py", line 120, in send
2019-07-05 21:42:39.028 | raise self.http_to_zaqar[resp.status_code](**kwargs)
2019-07-05 21:42:39.030 | zaqarclient.transport.errors.MalformedRequest: Error response from Zaqar. Code: 400. Title: Invalid request body. Description: ("Additional properties are not allowed (u'group' was unexpected)", <unset>, (), None, (), <unset>, <unset>, <unset>, (), None): Additional properties are not allowed (u'group' was unexpected)
2019-07-05 21:42:39.032 |
2019-07-05 21:42:39.034 | Failed validating 'additionalProperties' in schema:
2019-07-05 21:42:39.036 | {'additionalProperties': False,
2019-07-05 21:42:39.038 | 'properties': {'flavor': {'maxLength': 255,
2019-07-05 21:42:39.040 | 'minLength': 0,
2019-07-05 21:42:39.042 | 'type': 'string'},
2019-07-05 21:42:39.044 | 'options': {'type': 'object'},
2019-07-05 21:42:39.047 | 'uri': {'format': 'uri',
2019-07-05 21:42:39.049 | 'maxLength': 255,
2019-07-05 21:42:39.051 | 'minLength': 0,
2019-07-05 21:42:39.053 | 'type': 'string'},
2019-07-05 21:42:39.060 | 'weight': {'maximum': 4294967295,
2019-07-05 21:42:39.062 | 'minimum': 0,
2019-07-05 21:42:39.065 | 'type': 'integer'}},
2019-07-05 21:42:39.067 | 'required': ['uri', 'weight'],
2019-07-05 21:42:39.069 | 'type': 'object'}
2019-07-05 21:42:39.071 |
2019-07-05 21:42:39.074 | On instance:
2019-07-05 21:42:39.075 | {u'group': u'us',
2019-07-05 21:42:39.078 | u'options': {},
2019-07-05 21:42:39.080 | u'uri': u'mongodb://127.0.0.1:27017',
2019-07-05 21:42:39.082 | u'weight': 10}.
2019-07-05 21:42:39.084 |