original_string: public function previous($key = null)
      {
          if (is_null($key)) {
              return $this->oldAttributes;
          }
  
          return $this->oldAttributes[$key];
      }
code: public function previous($key = null)
      {
          if (is_null($key)) {
              return $this->oldAttributes;
          }
  
          return $this->oldAttributes[$key];
      }
code_tokens: public function previous ( $ key = null ) { if ( is_null ( $ key ) ) { return $ this -> oldAttributes ; } return $ this -> oldAttributes [ $ key ] ; }
docstring: Get original attributes
  
  @method previous
  
  @param string $key
  
  @return mixed
docstring_tokens: Get original attributes