ReadonlycentAmount in the smallest indivisible unit of a currency, such as:
* Cents for EUR and USD, pence for GBP, or centime for CHF (5 CHF is specified as `500`).
* The value in the major unit for currencies without minor units, like JPY (5 JPY is specified as `5`).
`centAmount` is represented as 64-bit integers. If this limit is exceeded, a [MoneyOverflow](/errors#moneyoverflow) error will be returned.
ReadonlycurrencyCurrency code compliant to ISO 4217.
Draft object to store money in cent amounts for a specific currency.