@type t() :: %Stripe.Params.SourceCreateParams{
  amount: integer() | nil,
  currency: String.t() | nil,
  customer: String.t() | nil,
  expand: [String.t()] | nil,
  flow: String.t() | nil,
  mandate: Stripe.Params.SourceCreateParams.Mandate.t() | nil,
  metadata: %{required(String.t()) => String.t()} | nil,
  original_source: String.t() | nil,
  owner: Stripe.Params.SourceCreateParams.Owner.t() | nil,
  receiver: Stripe.Params.SourceCreateParams.Receiver.t() | nil,
  redirect: Stripe.Params.SourceCreateParams.Redirect.t() | nil,
  source_order: Stripe.Params.SourceCreateParams.SourceOrder.t() | nil,
  statement_descriptor: String.t() | nil,
  token: String.t() | nil,
  type: String.t() | nil,
  usage: String.t() | nil
}