code: protected function bindPendingParams()
      {
          foreach ($this->_pendingParams as $name => $value) {
              $this->pdoStatement->bindValue($name, $value[0], $value[1]);
          }
          $this->_pendingParams = [];
      }
docs: Binds pending parameters that were registered via [[bindValue()]] and [[bindValues()]].
  Note that this method requires an active [[pdoStatement]].