def METHOD_NAME(self):
    session = boto3.Session(**self.credentials)
    if self.assume_role_arn:
        logger.info("Assume role %s", self.assume_role_arn)
        session = make_refreshable_assume_role_session(
            session,
            {"RoleArn": self.assume_role_arn,
             "RoleSessionName": "ZentralStoreKinesis"}
        )
    self.client = session.client('kinesis', region_name=self.region_name)
    self.configured = True