code: public function limit(/*# int */ $count, /*# int */ $offset = 0)
      {
          if ($count || $offset) {
              if (!empty($this->clause_limit)) {
                  $this->clause_limit[0] = (int) $count;
              } else {
                  $this->clause_limit = [(int) $count, (int) $offset];
              }
          }
          return $this;
      }
docs: {@inheritDoc}