{"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"TyKind::Function(fn_ptr)"}]}
            TyKind::Function(fn_ptr) => Some(CallableSig::from_fn_ptr(fn_ptr)),
        match self.kind(Interner) {
            TyKind::FnDef(def, parameters) => Some(CallableSig::from_def(db, *def, parameters)),