original_string: public function setCallbackURL($url)
      {
      	// Sequence validation
          $this->ensureIsProxy();
      	// Argument Validation
      	if (gettype($url) != 'string')
          	throw new CAS_TypeMismatchException($url, '$url', 'string');
  
          return $this->_callback_url = $url;
      }
code: public function setCallbackURL($url)
      {
      	// Sequence validation
          $this->ensureIsProxy();
      	// Argument Validation
      	if (gettype($url) != 'string')
          	throw new CAS_TypeMismatchException($url, '$url', 'string');
  
          return $this->_callback_url = $url;
      }
code_tokens: public function setCallbackURL ( $ url ) { // Sequence validation $ this -> ensureIsProxy ( ) ; // Argument Validation if ( gettype ( $ url ) != 'string' ) throw new CAS_TypeMismatchException ( $ url , '$url' , 'string' ) ; return $ this -> _callback_url = $ url ; }
docstring: This method sets the callback url.
  
  @param string $url url to set callback
  
  @return void
docstring_tokens: This method sets the callback url .