如何在Rust中找到枚举中最大的变体？

enum MyEnum {
    Variant1(u32),
    Variant2(u32),
    Variant3(u32),
}

fn find_largest_variant(my_enum: MyEnum) -> u32 {
    let mut max_value = 0;

    match my_enum {
        MyEnum::Variant1(value) => {
            if value > max_value {
                max_value = value;
            }
        }
        MyEnum::Variant2(value) => {
            if value > max_value {
                max_value = value;
            }
        }
        MyEnum::Variant3(value) => {
            if value > max_value {
                max_value = value;
            }
        }
    }

    max_value
}