public static HttpClient GetClient(AzureAppServiceManagedIdentityAuthenticatedHttpClientOptions options, HttpMessageHandler innerHandler = null)
        {
            var msgHandler = new AzureAppServiceManagedIdentityAuthenticatedHttpMessageHandler(options, innerHandler);

            return(new HttpClient(msgHandler));
        }
        public AzureAppServiceManagedIdentityAuthenticatedHttpMessageHandler(AzureAppServiceManagedIdentityAuthenticatedHttpClientOptions options, HttpMessageHandler innerHandler = null)
        {
            InnerHandler = innerHandler ?? new HttpClientHandler();

            _resourceId = options.ResourceId;
        }