/**
  * Delete this documents from database.
  *
  * @return \Clusterpoint\Response\Single
  */
 public function delete()
 {
     return QueryParser::delete($this->_id, $this->connection);
 }
 /**
  * Get scope value by clause
  *
  * @return $scope
  */
 public function getQuery()
 {
     return Parser::get($this->scope, $this->connection, true, true);
 }