GAE Python AWS:手ごたえがでてきた

　AWS からエラーメッセージらしきものが送られてきた。

AWS.InvalidOperationParameterThe Operation parameter is invalid. Please modify the Operation parameter and retry. Valid values for the Operation parameter include TagLookup, ListLookup, CartGet, SellerListingLookup, CustomerContentLookup, ItemLookup, SimilarityLookup, SellerLookup, ItemSearch, VehiclePartLookup, BrowseNodeLookup, CartModify, ListSearch, CartClear, VehiclePartSearch, CustomerContentSearch, CartCreate, TransactionLookup, VehicleSearch, SellerListingSearch, CartAdd, Help.