code: function workspacesUrl(workspaceSid) {
    return _.join(
      _.filter([TASKROUTER_BASE_URL, TASKROUTER_VERSION, 'Workspaces', workspaceSid], _.isString),
      '/'
    );
  }
docs: Generate TaskRouter workspace url
  
  @param {string} [workspaceSid] workspace sid or '**' for all workspaces
  @return {string} generated url