Zync
constructor(productUid: String, productCode: String?, prefix: String?, productName: String, productImage: String?, purchasePrice: Double?, price: Double?, productDescription: String?, productType: String?, uom: String?, currency: String?, markup: ZyncProductMarkup?, tax: ZyncLineItemCustomTax?, quantity: Double = 1.0, productCategory: ZyncProductCategory?, isAvailable: Boolean, isBillable: Boolean)