@type fee_source() :: %{
  optional(:charge) => String.t() | nil,
  optional(:payout) => String.t() | nil,
  optional(:type) => String.t() | nil,
  optional(String.t()) => term()
}

@type refunds() :: %{
  optional(:data) => [Stripe.Resources.FeeRefund.t()] | nil,
  optional(:has_more) => boolean() | nil,
  optional(:object) => String.t() | nil,
  optional(:url) => String.t() | nil,
  optional(String.t()) => term()
}

@type t() :: %Stripe.Resources.ApplicationFee{
  account: String.t() | Stripe.Resources.Account.t(),
  amount: integer(),
  amount_refunded: integer(),
  application: String.t() | Stripe.Resources.Application.t(),
  balance_transaction: String.t() | Stripe.Resources.BalanceTransaction.t(),
  charge: String.t() | Stripe.Resources.Charge.t(),
  created: integer(),
  currency: String.t(),
  fee_source: fee_source(),
  id: String.t(),
  livemode: boolean(),
  object: String.t(),
  originating_transaction: String.t() | Stripe.Resources.Charge.t(),
  refunded: boolean(),
  refunds: refunds()
}