Billing
constructor(addressLine1: String, addressLine2: String? = null, addressLine3: String? = null, city: String? = null, companyName: String? = null, country: String, district: String? = null, email: String? = null, firstName: String? = null, isValidAddress: Boolean? = null, lastName: String? = null, middleName: String? = null, phoneNumber: String? = null, postalCode: String? = null, region: String? = null)