syntax_data: {"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"[self_ty.into()].into_iter().chain(self.args.iter().skip(1)),"}]}
source_snippet:             [self_ty.into()].into_iter().chain(self.args.iter().skip(1)),
context_before:             self.def_id,
context_after:         )