{"ast_node_type":"function","tokens":[{"end":64,"kind":"keyword","start":0,"text":"pub(crate)"}]}
    pub(crate) fn mir_def_id(&self) -> hir::def_id::LocalDefId {
impl<'tcx> MirBorrowckCtxt<'_, '_, 'tcx> {
        self.body.source.def_id().expect_local()