Banker (or table manager), also known as Zhuanghe, refers to the occupation in a casino that is responsible for licensing and killing compensation (getting back the chips lost by guests) (losing money). In the United States, the word Zhuangjia generally refers to the staff of poker games, but there are exceptions, such as Zhuanghe of Craps of Citigroup, also known as the banker. In Asia, it is responsible for a card.
The word "lotus official" in Cantonese (especially in Hong Kong and Macao) comes from the fact that lotus officials are employees staring at guests' wallets in casinos, and they are often expressionless at work, so they are named "lotus officials".