original_string: public function add($name): ValidatorChain
      {
          $this->validators[$name] = $this->validators[$name] ?? Validator::create();
          return $this->validators[$name];
      }
code: public function add($name): ValidatorChain
      {
          $this->validators[$name] = $this->validators[$name] ?? Validator::create();
          return $this->validators[$name];
      }
code_tokens: public function add ( $ name ) : ValidatorChain { $ this -> validators [ $ name ] = $ this -> validators [ $ name ] ?? Validator :: create ( ) ; return $ this -> validators [ $ name ] ; }
docstring: Add chain to form
  
  @param string      $name
  
  @return ValidatorChain
docstring_tokens: Add chain to form