@type t() :: %DocuSign.Model.CurrencyPlanPrice{
  currencyCode: String.t() | nil,
  currencySymbol: String.t() | nil,
  perSeatPrice: String.t() | nil,
  supportIncidentFee: String.t() | nil,
  supportPlanFee: String.t() | nil,
  supportedCardTypes: DocuSign.Model.CreditCardTypes.t() | nil
}