@type t() :: %StripeElixir.Params.TransferCreateParams{
  amount: integer() | nil,
  currency: String.t(),
  description: String.t() | nil,
  destination: String.t(),
  expand: [String.t()] | nil,
  metadata: map() | nil,
  source_transaction: String.t() | nil,
  source_type: String.t() | nil,
  transfer_group: String.t() | nil
}