@java.lang.Override
    public boolean hasModificationDate() {
        return ((bitField0_ & 0x00000004) != 0);
    }
<code>optional int64 modification_date = 3;</code>

@return Whether the modificationDate field is set.
turms-client-kotlin/src/main/java/im/turms/client/model/proto/model/message/Message.java