public async Task Unset()
{
LCObject hello = new LCObject("Hello");
hello["content"] = "hello, world";
await hello.Save();
TestContext.WriteLine(hello["content"]);
Assert.AreEqual(hello["content"], "hello, world");
hello.Unset("content");
await hello.Save();
TestContext.WriteLine(hello["content"]);
Assert.IsNull(hello["content"]);
}