BankAccountBase
- countryType: stringmin length:2max length:2required
- currencyType: string | nullrequired
Optional merchant-declared currency hint captured at attach time.
- holderType: stringenum
_type requiredvalues- individual
- company
- objectenumconst:bank_accountrequiredvalues
- bank
_account
- bankType: string | null
_name - holderType: string
_name

