Identity Person in image

Program.cs

private static async Task<Person> Identify(FaceClient client, string personGroupId, string imageUrl)
{
    var detectedFaces = new List<DetectedFace>((await client.Face.DetectWithUrlAsync(imageUrl)).ToArray());
    var found = await client.Face.IdentifyAsync(detectedFaces.Select(df => df.FaceId).ToList(), personGroupId);
    var personId = found.First().Candidates.First().PersonId;
    return await client.PersonGroupPerson.GetAsync(personGroupId, personId);
}