{"ast_node_type":"function","tokens":[{"end":91,"kind":"keyword","start":0,"text":"fn"}]}
    fn assemble_inherent_impl_probe(&mut self, impl_def_id: DefId, receiver_steps: usize) {
    #[instrument(level = "debug", skip(self))]
        if !self.impl_dups.insert(impl_def_id) {