payload.py

payload = {
  # Name of the product
  'name': 'iPhone X, GSM Unlocked 5.8", 64 GB - Space Gray',

  # Brand (producer, supplier) of the item. You can set it to "No Brand" if you 
  # like to
  'brand': 'Apple',

  # A category you pick. It may be a category within your product hierarchy, 
  # or it can be a separate tag like "Discounted items", "Low traffic" etc.
  'category': 'Unlocked Cell Phones',

  # Product code, SKU, EAN, ASIN or whatever you choose to match a product 
  # to your own database. Below is an ASIN code.
  'product_code': 'B075QJSQM5'
}