def __init__(self, uri, credentials=None):
self.uri = uri
self.keyspace = KeyspaceService(self.uri, credentials)
self.credentials = credentials
def __init__(self, uri, credentials=None):
self.uri = uri
self.credentials = credentials
self._channel = grpc.insecure_channel(uri)
self._keyspace_service = KeyspaceService(self.uri, self._channel,
credentials)