@staticmethod
def _compose_log_stream_url(region, log_stream):
    """
        Create logStream url.

        :param region: the region on which the job has been submitted
        :param log_stream: the log stream name
        :return: an url
        """
    domain = 'amazonaws-us-gov' if region.startswith('us-gov') else 'aws'
    return (
        'https://console.{0}.amazon.com/cloudwatch/home?region={1}#logEventViewer:group=/aws/batch/job;stream={2}'
        .format(domain, region, log_stream))
