{"ast_node_type":"variable","tokens":[{"end":72,"kind":"keyword","start":0,"text":"if"}]}
                        if let ty::TermKind::Ty(term) = self.term.kind()
                    ty::Infer(ty::TyVar(vid)) => {
                            && let ty::Infer(ty::TyVar(term_vid)) = term.kind()