@type t() :: %Stripe.Tax.TransactionLineItem{
  amount: integer(),
  amount_tax: integer(),
  id: binary(),
  livemode: boolean(),
  metadata: term() | nil,
  object: binary(),
  product: binary() | nil,
  quantity: integer(),
  reference: binary(),
  reversal: term() | nil,
  tax_behavior: binary(),
  tax_code: binary(),
  type: binary()
}

The tax.transaction_line_item type.

• amount The line item amount in integer cents. If tax_behavior=inclusive, then this amount includes taxes. Otherwise, taxes were calculated on top of this amount.
• amount_tax The amount of tax calculated for this line item, in integer cents.
• 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.
• 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.
• object String representing the object's type. Objects of the same type share the same value.
• product The ID of an existing Product.
• quantity The number of units of the item being purchased. For reversals, this is the quantity reversed.
• reference A custom identifier for this line item in the transaction.
• reversal If type=reversal, contains information about what was reversed.
• tax_behavior Specifies whether the amount includes taxes. If tax_behavior=inclusive, then the amount includes taxes.
• tax_code The tax code ID used for this resource.
• type If reversal, this line item reverses an earlier transaction.