// Use FileMeta.newBuilder() to construct.
 private FileMeta(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
   super(builder);
   this.unknownFields = builder.getUnknownFields();
 }
 // Use SubscribeResp.newBuilder() to construct.
 private SubscribeResp(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
   super(builder);
   this.unknownFields = builder.getUnknownFields();
 }
 // Use ScriptedProvider.newBuilder() to construct.
 private ScriptedProvider(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
   super(builder);
   this.unknownFields = builder.getUnknownFields();
 }
 // Use EventDataFormat.newBuilder() to construct.
 private EventDataFormat(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
   super(builder);
   this.unknownFields = builder.getUnknownFields();
 }
 // Use ConfirmationReceipt.newBuilder() to construct.
 private ConfirmationReceipt(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
   super(builder);
   this.unknownFields = builder.getUnknownFields();
 }
 // Use JsTypeRenderSpec.newBuilder() to construct.
 private JsTypeRenderSpec(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
   super(builder);
   this.unknownFields = builder.getUnknownFields();
 }
 // Use HelloResponse.newBuilder() to construct.
 private HelloResponse(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
   super(builder);
   this.unknownFields = builder.getUnknownFields();
 }
 // Use UpdateMoverEventPkg.newBuilder() to construct.
 private UpdateMoverEventPkg(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
   super(builder);
   this.unknownFields = builder.getUnknownFields();
 }