curl --request GET \
  --url https://api.speedsellx.io/seller/v1/checkouts

{
  "data": [
    {
      "id": 123,
      "product_id": 123,
      "name": "<string>",
      "template": "<string>",
      "checkout_theme_id": 123,
      "status": "<string>",
      "branding": {
        "dark_mode": true,
        "primary_color": "<string>",
        "secondary_color": "<string>",
        "header_bg_color": "<string>",
        "header_text_color": "<string>",
        "logo": "<string>",
        "top_banner": "<string>",
        "top_2_banner": "<string>",
        "sidebar_banner": "<string>",
        "footer_banner": "<string>"
      },
      "created_at": "<string>",
      "updated_at": "<string>"
    }
  ]
}