public SendMessageResultInfo(
     global::Demo.State.SendMessagePayloadData sendMessage,
     global::System.Collections.Generic.IReadOnlyCollection <global::StrawberryShake.EntityId> entityIds,
     ulong version)
 {
     SendMessage = sendMessage;
     _entityIds  = entityIds
                   ?? throw new global::System.ArgumentNullException(nameof(entityIds));
     _version = version;
 }
 private ISendMessage_SendMessage MapNonNullableISendMessage_SendMessage(global::Demo.State.SendMessagePayloadData data)
 {
     ISendMessage_SendMessage returnValue = default !;