Macro crate_def_with_ty 

macro_rules! crate_def_with_ty {
    ( $(#[$attr:meta])*
      $vis:vis $name:ident $(;)?
    ) => { ... };
    ( $(#[$attr:meta])*
      $vis:vis $name:ident {
        $(
            $(#[$f_attr:meta])*
            $f_vis:vis $f_name:ident: $f_ty:ty,
        )*
      }
    ) => { ... };
}