Macro serde_struct_human_string_impl

macro_rules! serde_struct_human_string_impl {
    ($name:ident, $expecting:literal, $($fe:ident),*) => { ... };
}

Available on crate feature serde only.

A combination macro where the human-readable serialization is done like serde_string_impl and the non-human-readable impl is done as a struct.