Macro impl_enum_token 

macro_rules! impl_enum_token {
    ($token_type:ident; $trait_name:ident;  //
        $(
            $name:ident (
                $(
                    $variant:ident => ($($str:expr),+)
                    $(,)?
                )+
            )
        ),+ $(,)?
    ) => { ... };
}

Macro to implement specific token types for a given trait.

This macro simplifies the creation of token structures that implement a common trait, allowing for polymorphic handling of different token types within the parsing logic.