What is the USDT of mantle network?

I'm sorry, but could you clarify what you mean by 'USDT of mantle network'? It's not a phrase or term that I'm familiar with in the realm of cryptocurrency and finance. Could you please elaborate? Is it a specific token, a service, or a feature related to some blockchain network? I'm quite knowledgeable in the field of cryptocurrencies, and I'm always eager to learn about new developments. However, without further context, I'm unable to provide an accurate answer. If you have any additional information or if you can explain the concept in more detail, I'd be happy to help you understand it better.