Defines self-trade prevention modes for Binance Spot orders.

This enum corresponds to the selfTradePreventionMode parameter in the Binance API – New Order (TRADE).

Supported values:

• :NONE – No self-trade prevention is applied.
• :EXPIRE_MAKER – If a new order would match an existing order from the same account, the maker order is canceled.
• :EXPIRE_TAKER – If a new order would match an existing order from the same account, the taker order is canceled.
• :EXPIRE_BOTH – If a new order would match an existing order from the same account, both orders are canceled.

More info: Self Trade Prevention (STP) FAQ