{"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"self.ever_inits.fmt_diff_with(&old.ever_inits,"}]}
            self.ever_inits.fmt_diff_with(&old.ever_inits, ctxt, f)?;
            f.write_str("ever_inits: ")?;
            f.write_str("\n")?;