Creates a checkout

{
    "checkout": {
        "completed_at": null,
        "created_at": "2023-01-03T12:41:32-05:00",
        "currency": "USD",
        "presentment_currency": "USD",
        "customer_id": null,
        "customer_locale": "en",
        "device_id": null,
        "discount_code": null,
        "discount_codes": [],
        "email": null,
        "legal_notice_url": null,
        "location_id": null,
        "name": "#1066348317",
        "note": "",
        "note_attributes": {},
        "order_id": null,
        "order_status_url": null,
        "order": null,
        "payment_due": "995.00",
        "payment_url": "https://app.local/cardserver/sessions",
        "payments": [],
        "phone": null,
        "shopify_payments_account_id": null,
        "privacy_policy_url": null,
        "refund_policy_url": null,
        "requires_shipping": true,
        "reservation_time_left": 0,
        "reservation_time": null,
        "source_identifier": null,
        "source_name": "755357713",
        "source_url": null,
        "subscription_policy_url": null,
        "subtotal_price": "995.00",
        "shipping_policy_url": null,
        "tax_exempt": false,
        "taxes_included": false,
        "terms_of_sale_url": null,
        "terms_of_service_url": null,
        "token": "c3b86d7cdfaf5a4d1bf89efbbe88789e",
        "total_price": "995.00",
        "total_tax": "0.00",
        "total_tip_received": "0.00",
        "total_line_items_price": "995.00",
        "updated_at": "2023-01-03T12:41:32-05:00",
        "user_id": null,
        "web_url": "https://jsmith.myshopify.com/548380009/checkouts/c3b86d7cdfaf5a4d1bf89efbbe88789e",
        "total_duties": null,
        "total_additional_fees": null,
        "line_items": [
            {
                "id": "e8a51fbe23cff8fcad2766f024a761d6",
                "key": "e8a51fbe23cff8fcad2766f024a761d6",
                "product_id": 632910392,
                "variant_id": 39072856,
                "sku": "IPOD2008GREEN",
                "vendor": "Apple",
                "title": "IPod Nano - 8GB",
                "variant_title": "Green",
                "image_url": "https://cdn.shopify.com/s/files/1/0005/4838/0009/products/ipod-nano.png?v=1672766496",
                "taxable": true,
                "requires_shipping": true,
                "gift_card": false,
                "price": "199.00",
                "compare_at_price": null,
                "line_price": "995.00",
                "properties": {},
                "quantity": 5,
                "grams": 567,
                "fulfillment_service": "manual",
                "applied_discounts": [],
                "discount_allocations": [],
                "tax_lines": []
            }
        ],
        "gift_cards": [],
        "tax_lines": [],
        "tax_manipulations": [],
        "shipping_line": null,
        "shipping_rate": null,
        "shipping_address": null,
        "credit_card": null,
        "billing_address": null,
        "applied_discount": null,
        "applied_discounts": [],
        "discount_violations": []
    }
}