original_string: public function head($url, $options = [], $body = null)
      {
          return $this->httpRequest('HEAD', $this->createUrl($url, $options), $body);
      }
code: public function head($url, $options = [], $body = null)
      {
          return $this->httpRequest('HEAD', $this->createUrl($url, $options), $body);
      }
code_tokens: public function head ( $ url , $ options = [ ] , $ body = null ) { return $ this -> httpRequest ( 'HEAD' , $ this -> createUrl ( $ url , $ options ) , $ body ) ; }
docstring: Performs HEAD HTTP request
  
  @param string $url URL
  @param array $options URL options
  @param string $body request body
  @return mixed response
docstring_tokens: Performs HEAD HTTP request