# `Stripe.Params.InvoiceAddLinesParams.Lines.Period`
[🔗](https://github.com/jeffhuen/tiger_stripe/blob/main/lib/stripe/params/invoice_add_lines_params.ex#L64)

Nested parameters.

# `t`

```elixir
@type t() :: %Stripe.Params.InvoiceAddLinesParams.Lines.Period{
  end: integer() | nil,
  start: integer() | nil
}
```

* `end` - The end of the period, which must be greater than or equal to the start. This value is inclusive. Format: Unix timestamp.
* `start` - The start of the period. This value is inclusive. Format: Unix timestamp.

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