syntax_data: {"ast_node_type":"function","tokens":[{"end":76,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet:     pub fn node_args_opt(&self, id: HirId) -> Option<GenericArgsRef<'tcx>> {
context_after:         validate_hir_id_for_typeck_results(self.hir_owner, id);