I see that most of the responses return empty structures. Can we use google.protobuf.Empty to do this?

[XiaoK29]

• before

rpc mqtt_broker_delete_acl(DeleteAclRequest) returns (DeleteAclReply) {}

• after

rpc mqtt_broker_delete_acl(DeleteAclRequest) returns (google.protobuf.Empty);

[PorterZhang2021]

Thank you for your suggestions! Perhaps we can proceed with this approach, but we might need to wait a little while, as we're currently standardizing our formatting guidelines.