{"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"self.opt_hir_owner_node(def_id)?.fn_decl()?.opt_delegation_sig_id()"}]}
        self.opt_hir_owner_node(def_id)?.fn_decl()?.opt_delegation_sig_id()
    pub fn hir_opt_delegation_sig_id(self, def_id: LocalDefId) -> Option<DefId> {
    }