def create_queue(name=None, workers=<NUM_LIT:4>):
return JobQueue(name=name, workers=workers)<EOL>
Create a job queue.

    The following environment variables are used to contorol notifications:

      TD_USER                 Your email address
      TD_SLACK_WEBHOOK_URL    Slack Incoming Webhook URL
      TD_SLACK_TARGETS        (optional) Users or groups (e.g. "@td-users")

    Parameters
    ----------
    name : string, optional
        Queue name, used for notifications.
    workers : integer, default 4
        Use multiple workers for concurrent execution.

    Returns
    -------
    JobQueue