@type t() :: %Inttegro.CountrySpecification{
  banks: Inttegro.CountryBankDirectory.t() | nil,
  bt_aging_specs: [String.t()],
  country_code: String.t(),
  country_name: String.t(),
  currencies: [String.t()],
  financial_account_types: [String.t()],
  id_document_types: [String.t()],
  legal_entity_types: [String.t()],
  payment_methods: [String.t()],
  payout_schedules: [String.t()]
}