{"ast_node_type":"function","tokens":[{"end":100,"kind":"keyword","start":0,"text":"pub"}]}
pub fn tag_base_type<'tcx>(tcx: TyCtxt<'tcx>, enum_type_and_layout: TyAndLayout<'tcx>) -> Ty<'tcx> {
/// Extract the type with which we want to describe the tag of the given enum or coroutine.
    tag_base_type_opt(tcx, enum_type_and_layout).unwrap_or_else(|| {