original_string: public function setHandler($id)
      {
          if (is_string($id)) {
              $this->handler = $this->file->getHandler($id);
          } else {
              $this->handler = $id;
          }
  
          return $this;
      }
code: public function setHandler($id)
      {
          if (is_string($id)) {
              $this->handler = $this->file->getHandler($id);
          } else {
              $this->handler = $id;
          }
  
          return $this;
      }
code_tokens: public function setHandler ( $ id ) { if ( is_string ( $ id ) ) { $ this -> handler = $ this -> file -> getHandler ( $ id ) ; } else { $ this -> handler = $ id ; } return $ this ; }
docstring: Sets the current transfer handler
  @param mixed $id
  - string: load by validator ID
  - false: disable validator at all,
  - null: detect validator by file extension
  @return $this
docstring_tokens: Sets the current transfer handler