@shipengine/connect-carrier-api/src/models/currency.ts

This is the typescript/javascript definitions for carrier api

/** @description Basic structure for defining an amount of money and its currency */
export class Currency {
  /** @description The ISO 4217 Currency Code (USD, EUR, etc) https://www.iso.org/iso-4217-currency-codes.html */
  currency!: string;
  /** @description The amount */
  amount!: string;
}