original_string: public function is_changeable($level = null) {
          if ($this->changeable === false) {
              return false;
          } else {
              return parent::is_changeable($level);
          }
      }
code: public function is_changeable($level = null) {
          if ($this->changeable === false) {
              return false;
          } else {
              return parent::is_changeable($level);
          }
      }
code_tokens: public function is_changeable ( $ level = null ) { if ( $ this -> changeable === false ) { return false ; } else { return parent :: is_changeable ( $ level ) ; } }
docstring: Returns true if the setting is changeable
  @param int $level Optional, if provided only depedency_settings below or equal to this level are considered,
  when checking if the ui_setting is changeable. Although dependencies might cause a lock on this setting,
  they could be changeable in the same view.
  @return bool
docstring_tokens: Returns true if the setting is changeable