code: protected function _insert(array $cols, ?array $bind = null, bool $ignore = false) {
          $query = self::Db()->insert($this->_table)->ignore($ignore)->cols($cols);
          if (isset($bind))
              $query->bindValues($bind);
          return $query->query();
      }
docs: MySQL INSERT
  
  @param array $cols
  @param array|null $bind
  @param bool $ignore
  @return mixed