syntax_data: {"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"self.tcx.def_ident_span(self.item).unwrap_or_else(||"}]}
source_snippet:             self.tcx.def_ident_span(self.item).unwrap_or_else(|| self.tcx.def_span(self.item))
context_before:         self.span.unwrap_or_else(|| {
context_after:         })