AttributeError: 'Resource' object has no attribute 'reports' #2

# Authenticate and construct service.
scope = ['https://www.googleapis.com/auth/analytics.readonly']
service = self._get_service('analytics', 'v3', scope, self.config['key_file'])

gav4.apply_gav4(service)
qprms = {...}  # i removed query details because they're not relevant
res = service.gav4_get(**qprms).execute()

File "[...]/.virtualenvs/[...]/local/lib/python2.7/site-packages/gav4/gav4.py", line 184, in gav4_get
    batch_get = self.reports().batchGet(body=convert_request(**kwargs))
AttributeError: 'Resource' object has no attribute 'reports'

pip install --upgrade google-api-python-client
pip install --upgrade gav4