syntax_data: {"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"Dynamic(p,"}]}
source_snippet:             Dynamic(p, r, repr) => match repr {
context_before:             UnsafeBinder(binder) => write!(f, "{:?}", binder),
context_after:                 DynKind::Dyn => write!(f, "dyn {p:?} + {r:?}"),