{"ast_node_type":"variable","tokens":[{"end":98,"kind":"keyword","start":0,"text":"let"}]}
                let ast::AssocItemKind::DelegationMac(deleg) = &item.kind else { unreachable!() };
            InvocationKind::GlobDelegation { ref item, .. } => {
                deleg_impl = Some(self.invocation_parent(invoc_id));