Macro impl_attrvalue

macro_rules! impl_attrvalue {
    ($($ty:ty),+ $(,)?) => { ... };
}

Macro to implement AttrValue for types that implement ToString and FromStr.

This macro provides a convenient way to implement AttrValue for types that already have string conversion capabilities through the standard ToString and FromStr traits.

Usage

impl_attrvalue!(i32, u64, f64);

This will generate AttrValue implementations for i32, u64, and f64 that use their ToString and FromStr implementations for display and parsing.