package binance type MarginSettings struct { useMargin bool useMarginIsolated bool useMarginIsolatedSymbol string } func (e *MarginSettings) UseMargin() { e.useMargin = true } func (e *MarginSettings) UseIsolatedMargin(symbol string) { e.useMargin = true e.useMarginIsolated = true e.useMarginIsolatedSymbol = symbol }