public ComputerVision(IConfigurationRoot appConfig)
        {
            var cv         = appConfig.GetSection("ComputerVision");
            var credential = new ComputerVisionCredential
            {
                SubscriptionKey = cv["SubscriptionKey"],
                EndpointUrl     = cv["Endpoint"],
            };

            Client = Authenticate(credential);
        }
 public ComputerVisionClient Authenticate(ComputerVisionCredential credential)
 => new ComputerVisionClient(new ApiKeyServiceClientCredentials(credential.SubscriptionKey))
 {
     Endpoint = credential.EndpointUrl,
 };