syntax_data: {"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"self.print_def_path(trait_ref.def_id,"}]}
source_snippet:             self.print_def_path(trait_ref.def_id, trait_ref.args)?;
context_before:         if let Some(trait_ref) = impl_trait_ref {
context_after:         }