export interface IInvoice {

  /**
   * Product name.
   */
  title: string,

  /**
   * Product description.
   */
  description: string,

  /**
   * Unique bot deep-linking parameter that can be used to generate this invoice.
   */
  start_parameter: string,

  /**
   * Three-letter ISO 4217 currency code.
   */
  currency: string,

  /**
   * Total price in the smallest units of the currency (integer, not float/double).
   * For example, for a price of US$ 1.45 pass amount = 145. See the exp parameter in currencies.json,
   * it shows the number of digits past the decimal point for each currency (2 for the majority of currencies).
   */
  total_amount: number
}