public override Task <object[]> StartQueryMetadata(string text, out CancellationToken token)
{
VerifyAccess();
if (this.queryCancellationToken != null)
{
this.queryCancellationToken.Cancel();
}
this.queryCancellationToken = new CancellationTokenSource();
token = this.queryCancellationToken.Token;
return(MovieInfo.StartQueryMetadata(text, token).ContinueWith(t => (object[])t.Result, token));
}