@java.lang.Override
        public boolean hasInPrivateConversation() {
            return instance.hasInPrivateConversation();
        }
<code>optional bool in_private_conversation = 5;</code>

@return Whether the inPrivateConversation field is set.
turms-client-kotlin/src/main/java/im/turms/client/model/proto/request/storage/QueryMessageAttachmentInfosRequest.java