syntax_data: {"ast_node_type":"function","tokens":[{"end":74,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:     fn lift_to_interner(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> {
context_before:     type Lifted = ty::Term<'tcx>;
context_after:         match self.kind() {