# `Stripe.Params.TestHelpers.ConfirmationTokenCreateParams.PaymentMethodData.Klarna.Dob`
[🔗](https://github.com/jeffhuen/tiger_stripe/blob/main/lib/stripe/params/test_helpers/confirmation_token_create_params.ex#L336)

Nested parameters.

# `t`

```elixir
@type t() ::
  %Stripe.Params.TestHelpers.ConfirmationTokenCreateParams.PaymentMethodData.Klarna.Dob{
    day: integer() | nil,
    month: integer() | nil,
    year: integer() | nil
  }
```

* `day` - The day of birth, between 1 and 31.
* `month` - The month of birth, between 1 and 12.
* `year` - The four-digit year of birth.

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