ArgumentTypeException::__construct

public function __construct($parameter, $requiredType = "", Exception $previous = null)
{
	if (!empty($requiredType))
		$message = sprintf("The value of an argument '%s' must be of type %s", $parameter, $requiredType);
	else
		$message = sprintf("The value of an argument '%s' has an invalid type", $parameter);

	$this->requiredType = $requiredType;

	parent::__construct($message, $parameter, $previous);
}