original_string: public function rewind()
      {
          parent::rewind();
          $this->_values->rewind();
          $this->_validValues = $this->_values->valid();
      }
code: public function rewind()
      {
          parent::rewind();
          $this->_values->rewind();
          $this->_validValues = $this->_values->valid();
      }
code_tokens: public function rewind ( ) { parent :: rewind ( ) ; $ this -> _values -> rewind ( ) ; $ this -> _validValues = $ this -> _values -> valid ( ) ; }
docstring: Resets the collection pointer.
  
  @return void
docstring_tokens: Resets the collection pointer .