Google.Protobuf.WellKnownTypes.Empty
public sealed class Empty : IMessage<Empty>, IMessage, IEquatable<Empty>, IDeepCloneable<Empty>, IBufferMessage
A generic empty message that you can re-use to avoid defining duplicated
empty messages in your APIs. A typical example is to use it as the request
or the response type of an API method. For instance:
service Foo {
rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty);
}
public Empty()