public async Task AssociateAuthDataWithUnionId()
{
LCUser currentUser = await LCUser.Login("hello", "world");
string uuid = Guid.NewGuid().ToString();
Dictionary <string, object> authData = new Dictionary <string, object> {
{ "expires_in", 7200 },
{ "openid", uuid },
{ "access_token", uuid }
};
string unionId = Guid.NewGuid().ToString();
await currentUser.AssociateAuthDataAndUnionId(authData, "qq", unionId);
}