@type collected_information() :: %{
  optional(:shipping_details) => collected_information_shipping_details() | nil,
  optional(String.t()) => term()
}

• shipping_details - The shipping details to apply to this Session.

@type collected_information_shipping_details() :: %{
  optional(:address) => collected_information_shipping_details_address() | nil,
  optional(:name) => String.t() | nil,
  optional(String.t()) => term()
}

• address - The address of the customer
• name - The name of customer Max length: 255.

@type collected_information_shipping_details_address() :: %{
  optional(:city) => String.t() | nil,
  optional(:country) => String.t() | nil,
  optional(:line1) => String.t() | nil,
  optional(:line2) => String.t() | nil,
  optional(:postal_code) => String.t() | nil,
  optional(:state) => String.t() | nil,
  optional(String.t()) => term()
}

• city - City, district, suburb, town, or village. Max length: 5000.
• country - Two-letter country code (ISO 3166-1 alpha-2). Max length: 5000.
• line1 - Address line 1, such as the street, PO Box, or company name. Max length: 5000.
• line2 - Address line 2, such as the apartment, suite, unit, or building. Max length: 5000.
• postal_code - ZIP or postal code. Max length: 5000.
• state - State, county, province, or region (ISO 3166-2). Max length: 5000.

@type line_items() :: %{
  optional(:adjustable_quantity) => line_items_adjustable_quantity() | nil,
  optional(:id) => String.t() | nil,
  optional(:metadata) => map() | nil,
  optional(:price) => String.t() | nil,
  optional(:price_data) => line_items_price_data() | nil,
  optional(:quantity) => integer() | nil,
  optional(:tax_rates) => map() | nil,
  optional(String.t()) => term()
}

• adjustable_quantity - When set, provides configuration for this item’s quantity to be adjusted by the customer during Checkout.
• id - ID of an existing line item. Max length: 5000.
• 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. Individual keys can be unset by posting an empty value to them. All keys can be unset by posting an empty value to metadata.
• price - The ID of the Price. One of price or price_data is required when creating a new line item. Max length: 5000.
• price_data - Data used to generate a new Price object inline. One of price or price_data is required when creating a new line item.
• quantity - The quantity of the line item being purchased. Quantity should not be defined when recurring.usage_type=metered.
• tax_rates - The tax rates which apply to this line item.

@type line_items_adjustable_quantity() :: %{
  optional(:enabled) => boolean() | nil,
  optional(:maximum) => integer() | nil,
  optional(:minimum) => integer() | nil,
  optional(String.t()) => term()
}

• enabled - Set to true if the quantity can be adjusted to any positive integer. Setting to false will remove any previously specified constraints on quantity.
• maximum - The maximum quantity the customer can purchase for the Checkout Session. By default this value is 99. You can specify a value up to 999999.
• minimum - The minimum quantity the customer must purchase for the Checkout Session. By default this value is 0.

@type line_items_price_data() :: %{
  optional(:currency) => String.t() | nil,
  optional(:product) => String.t() | nil,
  optional(:product_data) => line_items_price_data_product_data() | nil,
  optional(:recurring) => line_items_price_data_recurring() | nil,
  optional(:tax_behavior) => String.t() | nil,
  optional(:unit_amount) => integer() | nil,
  optional(:unit_amount_decimal) => String.t() | nil,
  optional(String.t()) => term()
}

• currency - Three-letter ISO currency code, in lowercase. Must be a supported currency. Format: ISO 4217 currency code.
• product - The ID of the Product that this Price will belong to. One of product or product_data is required. Max length: 5000.
• product_data - Data used to generate a new Product object inline. One of product or product_data is required.
• recurring - The recurring components of a price such as interval and interval_count.
• tax_behavior - Only required if a default tax behavior was not provided in the Stripe Tax settings. Specifies whether the price is considered inclusive of taxes or exclusive of taxes. One of inclusive, exclusive, or unspecified. Once specified as either inclusive or exclusive, it cannot be changed. Possible values: exclusive, inclusive, unspecified.
• unit_amount - A non-negative integer in cents (or local equivalent) representing how much to charge. One of unit_amount or unit_amount_decimal is required.
• unit_amount_decimal - Same as unit_amount, but accepts a decimal value in cents (or local equivalent) with at most 12 decimal places. Only one of unit_amount and unit_amount_decimal can be set. Format: decimal string.

@type line_items_price_data_product_data() :: %{
  optional(:description) => String.t() | nil,
  optional(:images) => [String.t()] | nil,
  optional(:metadata) => %{required(String.t()) => String.t()} | nil,
  optional(:name) => String.t() | nil,
  optional(:tax_code) => String.t() | nil,
  optional(:unit_label) => String.t() | nil,
  optional(String.t()) => term()
}

• description - The product's description, meant to be displayable to the customer. Use this field to optionally store a long form explanation of the product being sold for your own rendering purposes. Max length: 40000.
• images - A list of up to 8 URLs of images for this product, meant to be displayable to the customer.
• 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. Individual keys can be unset by posting an empty value to them. All keys can be unset by posting an empty value to metadata.
• name - The product's name, meant to be displayable to the customer. Max length: 5000.
• tax_code - A tax code ID. Max length: 5000.
• unit_label - A label that represents units of this product. When set, this will be included in customers' receipts, invoices, Checkout, and the customer portal. Max length: 12.

@type line_items_price_data_recurring() :: %{
  optional(:interval) => String.t() | nil,
  optional(:interval_count) => integer() | nil,
  optional(String.t()) => term()
}

• interval - Specifies billing frequency. Either day, week, month or year. Possible values: day, month, week, year.
• interval_count - The number of intervals between subscription billings. For example, interval=month and interval_count=3 bills every 3 months. Maximum of three years interval allowed (3 years, 36 months, or 156 weeks).

@type t() :: %Stripe.Params.Checkout.SessionUpdateParams{
  collected_information: collected_information() | nil,
  expand: [String.t()] | nil,
  line_items: [line_items()] | nil,
  metadata: map() | nil,
  shipping_options: map() | nil
}

• collected_information - Information about the customer collected within the Checkout Session. Can only be set when updating embedded or custom sessions.
• expand - Specifies which fields in the response should be expanded.
• line_items - A list of items the customer is purchasing.

When updating line items, you must retransmit the entire array of line items.

To retain an existing line item, specify its id.

To update an existing line item, specify its id along with the new values of the fields to update.

To add a new line item, specify one of price or price_data and quantity.

To remove an existing line item, omit the line item's ID from the retransmitted array.

To reorder a line item, specify it at the desired position in the retransmitted array.

• 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. Individual keys can be unset by posting an empty value to them. All keys can be unset by posting an empty value to metadata.
• shipping_options - The shipping rate options to apply to this Session. Up to a maximum of 5.