Interface BillCustomerDetails

interface BillCustomerDetails {
    area?: string;
    bouquet_code?: string;
    bouquet_name?: string;
    bouquet_price?: string;
    customer_name: string;
    customer_ref?: string;
    customer_type?: string;
    last_payment_amount?: string;
    last_payment_date?: string;
    outstanding_balance?: number;
    smart_card_no?: string;
    utility_code?: string;
}