C# 复杂属性的FluentValidation错误分组

我无法确定如何覆盖“平面”错误格式，如下所示：

{
    "Discount": [
        "'Discount' must be greater than or equal to '0'."
    ],
    "Guest.LastName": [
        "'Last Name' should not be empty."
    ],
    "Guest.CountryId": [
        "'Country Id' should not be empty."
    ],
    "Guest.FirstName": [
        "'First Name' should not be empty."
    ],
    "Guest.DocumentTypeId": [
        "'Document Type Id' should not be empty."
    ]
}

变成类似于：

{
    "Discount": [
        "'Discount' must be greater than or equal to '0'."
    ],
    "Guest": [
        //grouped errors
    ]
}

我没有做任何花哨的事，只是打电话：

RuleFor(m => m.Guest).SetValidator(new CheckInGuestModelValidator())

甚至有可能以非平面列表的形式获得结果错误吗

多谢各位 皮奥特