syntax_data: {"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"self.with_ctxt_from_mark(expn_id,"}]}
source_snippet:         self.with_ctxt_from_mark(expn_id, Transparency::Opaque)
context_before:     pub fn with_def_site_ctxt(self, expn_id: ExpnId) -> Span {
context_after:     }