Interface OrderItem

interface OrderItem {
    id: number;
    product: Product;
    variant: ProductVariant;
    design: null | CustomDesign;
    product_name: string;
    variant_description: string;
    custom_text: string;
    custom_number: string;
    quantity: number;
    unit_price: string;
    custom_text_cost: string;
    custom_number_cost: string;
    printing_cost: string;
    line_total: string;
    production_status: ProductionStatus;
    created_at: string;
}