{"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"span.with_mixed_site_ctxt(self.current_expansion.id.to_expn_id())"}]}
        span.with_mixed_site_ctxt(self.current_expansion.id.to_expn_id())
    pub fn with_mixed_site_ctxt(&self, span: Span) -> Span {
    }