code: function taskQueuesUrl(workspaceSid, taskQueueSid) {
    return _.join(
      _.filter([workspacesUrl(workspaceSid), 'TaskQueues', taskQueueSid], _.isString),
      '/'
    );
  }
docs: Generate TaskRouter task queue url
  
  @param {string} workspaceSid workspace sid
  @param {string} [taskQueueSid] task queue sid or '**' for all task queues
  @return {string} generated url