Interface ShippingOption

interface ShippingOption {
    amount: number;
    description: string;
    displayName: string;
    shippingOptionReference: string;
    shippingType?:
        | "TO_DOOR"
        | "TO_CURB"
        | "TO_MAILBOX"
        | "PICKUP_BOX"
        | "PICKUP_POINT"
        | "PICKUP_STORE"
        | "PICKUP_WAREHOUSE"
        | "DIGITAL_EMAIL"
        | "DIGITAL_DOWNLOAD"
        | "DIGITAL_OTHER"
        | "PHYSICAL_OTHER";
}