public static ByteBuf getPongChannelBuffer() {
        BaseCommand cmdPong = BaseCommand.newBuilder()
                .setType(Type.PONG)
                .setPong(Pong.getDefaultInstance()).build();
        return getChannelBuffer(cmdPong.toByteArray());
    }
Audit commands, used to get various of ByteBuf.
inlong-audit/audit-common/src/main/java/org/apache/inlong/audit/protocol/Commands.java