Get job queue by name or ARN
        :param identifier: Name or ARN
        :type identifier: str

        :return: Job Queue or None
        :rtype: JobQueue or None

def get_job_queue(self, identifier):
        """
        Get job queue by name or ARN
        :param identifier: Name or ARN
        :type identifier: str

        :return: Job Queue or None
        :rtype: JobQueue or None
        """
        env = self.get_job_queue_by_arn(identifier)
        if env is None:
            env = self.get_job_queue_by_name(identifier)
        return env