string someObject = "someObject";
await blobCache.InsertObject(cacheKey, someObject.ToEnumerable(), null);
var obj = await blobCache.GetObject<IEnumerable<string>>(cacheKey);
var res = await blobCache.Get(cacheKey, typeof(IEnumerable<string>)); // Ok
var res2 = await blobCache.Get(cacheKey); // throws KeyNotFoundException