{"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"Ok(FallibleTypeFolder::cx(folder).mk_predefined_opaques_in_body(PredefinedOpaquesData"}]}
        Ok(FallibleTypeFolder::cx(folder).mk_predefined_opaques_in_body(PredefinedOpaquesData {
    ) -> Result<Self, F::Error> {
            opaque_types: self