docs: function (block, cb) {
              var rowCb, ret;
              if (this.__opts.graph) {
                  ret = this.graphEach(block);
              } else {
                  ret = this.fetchRows(this.selectSql);
                  if ((rowCb = this.rowCb)) {
                      ret = ret.map(function (r) {
                          return rowCb(r);
                      });
                  }
                  if (block) {
                      ret = ret.forEach(block);
                  }
              }
              return ret.classic(cb);
          }