Index: grpc-1.45.0/src/core/lib/transport/metadata_batch.h
===================================================================
--- grpc-1.45.0.orig/src/core/lib/transport/metadata_batch.h
+++ grpc-1.45.0/src/core/lib/transport/metadata_batch.h
@@ -530,6 +530,7 @@ struct GrpcStreamNetworkState {
       case kNotSeenByServer:
         return "not seen by server";
     }
+    return "none";
   }
 };