@type applies_to() :: %{optional(:products) => [binary()]}

A hash containing directions for what this Coupon will apply discounts to.

@type t() :: %Stripe.Coupon{
  amount_off: integer() | nil,
  applies_to: term(),
  created: integer(),
  currency: binary() | nil,
  currency_options: term(),
  duration: binary(),
  duration_in_months: integer() | nil,
  id: binary(),
  livemode: boolean(),
  max_redemptions: integer() | nil,
  metadata: term() | nil,
  name: binary() | nil,
  object: binary(),
  percent_off: term() | nil,
  redeem_by: integer() | nil,
  times_redeemed: integer(),
  valid: boolean()
}

The coupon type.

• amount_off Amount (in the currency specified) that will be taken off the subtotal of any invoices for this customer.
• applies_to
• created Time at which the object was created. Measured in seconds since the Unix epoch.
• currency If amount_off has been set, the three-letter ISO code for the currency of the amount to take off.
• currency_options Coupons defined in each available currency option. Each key must be a three-letter ISO currency code and a supported currency.
• duration One of forever, once, and repeating. Describes how long a customer who applies this coupon will get the discount.
• duration_in_months If duration is repeating, the number of months the coupon applies. Null if coupon duration is forever or once.
• id Unique identifier for the object.
• livemode Has the value true if the object exists in live mode or the value false if the object exists in test mode.
• max_redemptions Maximum number of times this coupon can be redeemed, in total, across all customers, before it is no longer valid.
• metadata Set of key-value pairs that you can attach to an object. This can be useful for storing additional information about the object in a structured format.
• name Name of the coupon displayed to customers on for instance invoices or receipts.
• object String representing the object's type. Objects of the same type share the same value.
• percent_off Percent that will be taken off the subtotal of any invoices for this customer for the duration of the coupon. For example, a coupon with percent_off of 50 will make a %s100 invoice %s50 instead.
• redeem_by Date after which the coupon can no longer be redeemed.
• times_redeemed Number of times this coupon has been applied to a customer.
• valid Taking account of the above properties, whether this coupon can still be applied to a customer.