Macro debugui::set

macro_rules! set {
    ($name:literal, $value:expr => $([$egui:ident])? |_ : & $data_ty:ty, $ui_data:pat_param, $ui:ident| $fn_body:block ) => { ... };
    ($name:literal, $value:expr => $([$egui:ident])? |$data:ident : & $data_ty:ty, $ui_data:pat_param, $ui:ident| $fn_body:block ) => { ... };
    ($value:expr => $([$egui:ident])? | _ : & $data_ty:ty, $ui_data:pat_param, $ui:ident| $fn_body:block ) => { ... };
    ($value:expr => $([$egui:ident])? |$data:ident : & $data_ty:ty, $ui_data:pat_param, $ui:ident| $fn_body:block ) => { ... };
    ($name:literal, $value:expr $( => $viewer:ident)?) => { ... };
    ($value:expr $(=> $viewer:ident)?) => { ... };
}