Storm\Drivers\Base\Relational\Expressions\Expression::FunctionCall PHP Method

    public static function FunctionCall($Name, ValueListExpression $ArgumentValueListExpression = null)
    {
        $ArgumentValueListExpression = $ArgumentValueListExpression ?: new ValueListExpression([]);
        return new FunctionCallExpression($Name, $ArgumentValueListExpression);
    }

 public function GetPersistExpression(CoreExpression $Expression)
 {
     return Expression::FunctionCall('UNHEX', Expression::ValueList([$Expression]));
 }