What do you mean with __all__? Do you really mean all Items from ebay? This in not possible, because that is to much data. Do you mean all items of the current seller? Than use GetSellerList as i already said.
Thanks for your response. Here is "All" means not that fetch all ebay products. Here is "All" means that "First we fetch last 120 days product from Ebay server. Those products which we fetch products from ebay it doesn't contain the ItemArray.Item.SKU fields. So, we have used GetItem API for fetch the SKU but it gives only one product details at a time. So, there is any Trading API which gives product SKU in array."