@java.lang.Override
        public long getAttachmentIdNum() {
            return attachmentIdNum_;
        }
<pre>
Query filter
</pre>

<code>optional int64 attachment_id_num = 1;</code>

@return The attachmentIdNum.
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/request/storage/UpdateMessageAttachmentInfoRequest.java