if err != nil {
		t.Fatal(err)
	}

	pubKeys := publicKeys{
		RWMutex: &sync.RWMutex{},
		pkMap:   map[string]interface{}{},
	}
	pubKeys.add("76b95ae5-33ef-4283-97b7-d2a85dc2d8f4", []byte("WNGvKVyyNmXq0TraSvjaDN9CtpFgx35IXtGEffMCPR0"))

	if len(pubKeys.pkMap) != 1 {
		t.Fatalf("Expected 1 keys, got %d", len(pubKeys.pkMap))
	}

	provider := providerCfg{
		ClientID:     "76b95ae5-33ef-4283-97b7-d2a85dc2d8f4",

		}
	}

	lkMap := caseInsensitiveMap(objInfo.UserDefined)
	if lang, ok := lkMap.Lookup(xhttp.ContentLanguage); ok {
		putOpts.ContentLanguage = lang
	}
	if disp, ok := lkMap.Lookup(xhttp.ContentDisposition); ok {
		putOpts.ContentDisposition = disp
	}
	if cc, ok := lkMap.Lookup(xhttp.CacheControl); ok {
		putOpts.CacheControl = cc
	}
	if mode, ok := lkMap.Lookup(xhttp.AmzObjectLockMode); ok {