/**
 * @schema BaseCart
 * type: object
 * description: The item's cart.
 * x-schemaName: BaseCart
 * required:
 *   - id
 *   - currency_code
 *   - original_item_total
 *   - original_item_subtotal
 *   - original_item_tax_total
 *   - item_total
 *   - item_subtotal
 *   - item_tax_total
 *   - original_total
 *   - original_subtotal
 *   - original_tax_total
 *   - total
 *   - subtotal
 *   - tax_total
 *   - discount_total
 *   - discount_tax_total
 *   - gift_card_total
 *   - gift_card_tax_total
 *   - shipping_total
 *   - shipping_subtotal
 *   - shipping_tax_total
 *   - original_shipping_total
 *   - original_shipping_subtotal
 *   - original_shipping_tax_total
 * properties:
 *   id:
 *     type: string
 *     title: id
 *     description: The cart's ID.
 *   region:
 *     $ref: "#/components/schemas/BaseRegion"
 *   region_id:
 *     type: string
 *     title: region_id
 *     description: The cart's region id.
 *   customer_id:
 *     type: string
 *     title: customer_id
 *     description: The cart's customer id.
 *   sales_channel_id:
 *     type: string
 *     title: sales_channel_id
 *     description: The cart's sales channel id.
 *   email:
 *     type: string
 *     title: email
 *     description: The cart's email.
 *     format: email
 *   currency_code:
 *     type: string
 *     title: currency_code
 *     description: The cart's currency code.
 *   shipping_address:
 *     $ref: "#/components/schemas/BaseCartAddress"
 *   billing_address:
 *     $ref: "#/components/schemas/BaseCartAddress"
 *   items:
 *     type: array
 *     description: The cart's items.
 *     items:
 *       $ref: "#/components/schemas/BaseCartLineItem"
 *   shipping_methods:
 *     type: array
 *     description: The cart's shipping methods.
 *     items:
 *       $ref: "#/components/schemas/BaseCartShippingMethod"
 *   payment_collection:
 *     $ref: "#/components/schemas/BasePaymentCollection"
 *   metadata:
 *     type: object
 *     description: The cart's metadata.
 *     externalDocs:
 *       url: https://docs.medusajs.com/api/store#manage-metadata
 *       description: Learn how to manage metadata
 *   created_at:
 *     type: string
 *     format: date-time
 *     title: created_at
 *     description: The cart's created at.
 *   updated_at:
 *     type: string
 *     format: date-time
 *     title: updated_at
 *     description: The cart's updated at.
 *   original_item_total:
 *     type: number
 *     title: original_item_total
 *     description: The sum of all line items' original totals before discounts, including taxes.
 *   original_item_subtotal:
 *     type: number
 *     title: original_item_subtotal
 *     description: The sum of all line items' original subtotals before discounts, excluding taxes.
 *   original_item_tax_total:
 *     type: number
 *     title: original_item_tax_total
 *     description: The sum of all line items' original tax totals before discounts.
 *   item_total:
 *     type: number
 *     title: item_total
 *     description: The sum of all line items' totals after discounts, including taxes.
 *   item_subtotal:
 *     type: number
 *     title: item_subtotal
 *     description: The sum of all line items' subtotals before discounts, excluding taxes.
 *   item_tax_total:
 *     type: number
 *     title: item_tax_total
 *     description: The sum of all line items' tax totals after discounts.
 *   original_total:
 *     type: number
 *     title: original_total
 *     description: The cart's total before discounts, including taxes. Calculated as the sum of `original_item_total` and `original_shipping_total`.
 *   original_subtotal:
 *     type: number
 *     title: original_subtotal
 *     description: The cart's subtotal before discounts, excluding taxes. Calculated as the sum of `original_item_subtotal` and `original_shipping_subtotal`.
 *   original_tax_total:
 *     type: number
 *     title: original_tax_total
 *     description: The cart's tax total before discounts. Calculated as the sum of `original_item_tax_total` and `original_shipping_tax_total`.
 *   total:
 *     type: number
 *     title: total
 *     description: The cart's final total after discounts and credit lines, including taxes.
 *   subtotal:
 *     type: number
 *     title: subtotal
 *     description: The cart's subtotal before discounts, excluding taxes. Calculated as the sum of `item_subtotal` and `shipping_subtotal`.
 *   tax_total:
 *     type: number
 *     title: tax_total
 *     description: The cart's tax total after discounts. Calculated as the sum of `item_tax_total` and `shipping_tax_total`.
 *   discount_total:
 *     type: number
 *     title: discount_total
 *     description: The total amount of discounts applied to the cart, including the tax portion of discounts.
 *   discount_tax_total:
 *     type: number
 *     title: discount_tax_total
 *     description: The total amount of discounts applied to the cart's tax. Represents the tax portion of discounts.
 *   gift_card_total:
 *     type: number
 *     title: gift_card_total
 *     description: The cart's gift card total.
 *   gift_card_tax_total:
 *     type: number
 *     title: gift_card_tax_total
 *     description: The cart's gift card tax total.
 *   shipping_total:
 *     type: number
 *     title: shipping_total
 *     description: The sum of all shipping methods' totals after discounts, including taxes.
 *   shipping_subtotal:
 *     type: number
 *     title: shipping_subtotal
 *     description: The sum of all shipping methods' subtotals before discounts, excluding taxes.
 *   shipping_tax_total:
 *     type: number
 *     title: shipping_tax_total
 *     description: The sum of all shipping methods' tax totals after discounts.
 *   original_shipping_total:
 *     type: number
 *     title: original_shipping_total
 *     description: The sum of all shipping methods' original totals before discounts, including taxes.
 *   original_shipping_subtotal:
 *     type: number
 *     title: original_shipping_subtotal
 *     description: The sum of all shipping methods' original subtotals before discounts, excluding taxes.
 *   original_shipping_tax_total:
 *     type: number
 *     title: original_shipping_tax_total
 *     description: The sum of all shipping methods' original tax totals before discounts.
 * 
*/