{"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"expect_fn,"}]}
        expect_fn,    (&FnSig<'hir>, BodyId),   ImplItemKind::Fn(ty, body),    (ty, *body);
        expect_const, (&'hir Ty<'hir>, BodyId), ImplItemKind::Const(ty, body), (ty, *body);
        expect_type,  &'hir Ty<'hir>,           ImplItemKind::Type(ty),        ty;