Macro golang_type_decl::gen_type_alias_from_file

macro_rules! gen_type_alias_from_file {
    ($path:literal) => { ... };
    (
        $path:literal,
        $type_:ty
    ) => { ... };
    (
        $path:literal,
        $( $opt_k:ident = $opt_v:literal ),+ $(,)?
    ) => { ... };
    (
        $path:literal,
        $type_:ty,
        $( $opt_k:ident = $opt_v:literal ),+ $(,)?
    ) => { ... };
}