syntax_data: {"ast_node_type":"other","tokens":[{"end":1,"kind":"keyword","start":0,"text":"{"}]}
source_snippet: {
context_before:     C: crate::move_paths::HasMoveData<'tcx>,
context_after:     fn fmt_with(&self, ctxt: &C, f: &mut fmt::Formatter<'_>) -> fmt::Result {