original_string: public function getHeaders()
      {
          $headers = [];
          foreach ($this->srv as $k => $v) {
              $headers[self::normalizeHeaderKeyName($k)] = $v;
          }
  
          return $headers;
      }
code: public function getHeaders()
      {
          $headers = [];
          foreach ($this->srv as $k => $v) {
              $headers[self::normalizeHeaderKeyName($k)] = $v;
          }
  
          return $headers;
      }
code_tokens: public function getHeaders ( ) { $ headers = [ ] ; foreach ( $ this -> srv as $ k => $ v ) { $ headers [ self :: normalizeHeaderKeyName ( $ k ) ] = $ v ; } return $ headers ; }
docstring: Get the HTTP headers.
  
  @return array the HTTP headers as a key-value array
docstring_tokens: Get the HTTP headers .