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package gobacktest
import (
// "fmt"
)
// ExchangeFeeHandler is the basic interface for managing the exchange fee
type ExchangeFeeHandler interface {
Fee() (float64, error)
}
// FixedExchangeFee returns a fixed exchange fee
type FixedExchangeFee struct {
ExchangeFee float64
}
// Fee returns the set exchange fee of the trade
func (e *FixedExchangeFee) Fee() (float64, error) {
return e.ExchangeFee, nil
}
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