Will Genshin allow trading?

Could you please clarify whether Genshin Impact, the popular open-world adventure game, currently allows for any form of in-game trading or marketplace for players to buy, sell, or exchange virtual items, characters, or currencies? It's a question that many gamers are eager to know, especially those who are invested in the game's virtual economy and are looking to engage in transactions that could potentially enhance their gameplay experience. If trading is allowed, what are the specific guidelines and restrictions that players need to be aware of?