docs: function(args, callback) {
              if (utils.isUndefined(callback)) {
                  callback = args;
                  args = {};
              }
              if (!args || Object.keys(args).length === 0) {
                  args = {};
              }
  
              // If tstats is undefined, use pivotSearch (try to run an accelerated search if possible)
              this.service.search(this.tstatsSearch || this.pivotSearch, args, callback);
          }