Money fields
API v1 returns decimal price amounts.amount_per_night:
POST /booking accepts a currency value. If you omit it, API v1 defaults to
CZK.API v1 currencies
Understand money and currency fields in API v1.
API v1 price fields include a currency code.
Supported currencies:
Lowest-price fields use
Some price responses are keyed by language because the returned currency follows
the localized booking context.