original_string: public function variables() : array
      {
          return [
              'placeholder' => $this->placeholder,
              'icon'        => $this->icon,
              'type'        => $this->type,
              'group'       => $this->filter->group,
          ];
      }
code: public function variables() : array
      {
          return [
              'placeholder' => $this->placeholder,
              'icon'        => $this->icon,
              'type'        => $this->type,
              'group'       => $this->filter->group,
          ];
      }
code_tokens: public function variables ( ) : array { return [ 'placeholder' => $ this -> placeholder , 'icon' => $ this -> icon , 'type' => $ this -> type , 'group' => $ this -> filter -> group , ] ; }
docstring: Get variables for field template.
  
  @return array
docstring_tokens: Get variables for field template .