/// <summary>
 /// Lists a collection of Identity Provider configured in the specified service
 /// instance.
 /// <see href="https://docs.microsoft.com/en-us/azure/api-management/api-management-howto-aad#how-to-authorize-developer-accounts-using-azure-active-directory" />
 /// </summary>
 /// <param name='operations'>
 /// The operations group for this extension method.
 /// </param>
 /// <param name='resourceGroupName'>
 /// The name of the resource group.
 /// </param>
 /// <param name='serviceName'>
 /// The name of the API Management service.
 /// </param>
 /// <param name='cancellationToken'>
 /// The cancellation token.
 /// </param>
 public static async Task <IPage <IdentityProviderContract> > ListByServiceAsync(this IIdentityProviderOperations operations, string resourceGroupName, string serviceName, CancellationToken cancellationToken = default(CancellationToken))
 {
     using (var _result = await operations.ListByServiceWithHttpMessagesAsync(resourceGroupName, serviceName, null, cancellationToken).ConfigureAwait(false))
     {
         return(_result.Body);
     }
 }