build/manage_offer.go
func ManageOffer(passiveOffer bool, muts ...interface{}) (result ManageOfferBuilder) {
	result.PassiveOffer = passiveOffer
	result.Mutate(muts...)
	return
}
func ManageOffer(passiveOffer bool, muts ...interface{}) (result ManageOfferBuilder) {
	result.PassiveOffer = passiveOffer
	result.Mutate(muts...)
	return
}
// ManageOffer groups the creation of a new ManageOfferBuilder with a call to Mutate.