{"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"err.subdiagnostic(RequireStaticErr::UsedImpl"}]}
                err.subdiagnostic(RequireStaticErr::UsedImpl { multi_span });
                multi_span.push_span_label(ident.span, fluent::borrowck_implicit_static_introduced);
                err.span_suggestion_verbose(