Fetch product feed details, which is used to retrieve details about a specific product feed. The product feed includes a comma-separated list of field names:

• retailer_id: The ID of the retailer associated with the product.
• name: The name of the product.
• price: The price of the product.
• availability: The availability status of the product.
• id: The ID of the product.
• description: The description of the product.
• color: The color of the product.
• size: The size of the product.
• condition: The condition of the product.
• product_type: The type of product.
• quantity_to_sell_on_facebook: The quantity of the product to be sold on Facebook.
• url: The URL of the product.
• gender: The gender for which the product is intended.
• age_group: The age group for which the product is intended.
• sale_price: The sale price of the product.
• mpn: The manufacturer part number of the product.
• sale_price_effective_date: The effective date range of the sale price.
• brand: The brand of the product.
• custom_label_0: A custom label for the product.