# `Stripe.Params.TestHelpers.CustomerFundCashBalanceParams`
[🔗](https://github.com/jeffhuen/tiger_stripe/blob/main/lib/stripe/params/test_helpers/customer_fund_cash_balance_params.ex#L2)

Parameters for customer fund cash balance.

# `t`

```elixir
@type t() :: %Stripe.Params.TestHelpers.CustomerFundCashBalanceParams{
  amount: integer(),
  currency: String.t(),
  expand: [String.t()] | nil,
  reference: String.t() | nil
}
```

* `amount` - Amount to be used for this test cash balance transaction. A positive integer representing how much to fund in the [smallest currency unit](https://docs.stripe.com/currencies#zero-decimal) (e.g., 100 cents to fund $1.00 or 100 to fund ¥100, a zero-decimal currency).
* `currency` - Three-letter [ISO currency code](https://www.iso.org/iso-4217-currency-codes.html), in lowercase. Must be a [supported currency](https://stripe.com/docs/currencies). Format: ISO 4217 currency code.
* `expand` - Specifies which fields in the response should be expanded.
* `reference` - A description of the test funding. This simulates free-text references supplied by customers when making bank transfers to their cash balance. You can use this to test how Stripe's [reconciliation algorithm](https://docs.stripe.com/payments/customer-balance/reconciliation) applies to different user inputs. Max length: 5000.

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*Consult [api-reference.md](api-reference.md) for complete listing*