syntax_data: {"ast_node_type":"other","tokens":[{"end":1,"kind":"keyword","start":0,"text":"{"}]}
source_snippet: {
context_before:     Ty: TyAbiInterface<'a, C> + Copy,
context_after:     if opts.flavor != Flavor::FastcallOrVectorcall && opts.regparm.is_none_or(|x| x == 0) {