diff --git a/libs/binder/RpcState.h b/libs/binder/RpcState.h
index 1cfa406..825fd7c 100644
--- a/libs/binder/RpcState.h
+++ b/libs/binder/RpcState.h
@@ -50,9 +50,12 @@
     RpcState();
     ~RpcState();
 
+    // TODO(b/182940634): combine some special transactions into one "getServerInfo" call?
     sp<IBinder> getRootObject(const base::unique_fd& fd, const sp<RpcConnection>& connection);
     status_t getMaxThreads(const base::unique_fd& fd, const sp<RpcConnection>& connection,
                            size_t* maxThreadsOut);
+    status_t getConnectionId(const base::unique_fd& fd, const sp<RpcConnection>& connection,
+                             int32_t* connectionIdOut);
 
     [[nodiscard]] status_t transact(const base::unique_fd& fd, const RpcAddress& address,
                                     uint32_t code, const Parcel& data,