/// <summary>
 /// Lists the login credentials for the specified container registry.
 /// </summary>
 /// <param name='operations'>
 /// The operations group for this extension method.
 /// </param>
 /// <param name='resourceGroupName'>
 /// The name of the resource group to which the container registry belongs.
 /// </param>
 /// <param name='registryName'>
 /// The name of the container registry.
 /// </param>
 /// <param name='cancellationToken'>
 /// The cancellation token.
 /// </param>
 public static async Task <RegistryListCredentialsResultInner> ListCredentialsAsync(this IRegistriesOperations operations, string resourceGroupName, string registryName, CancellationToken cancellationToken = default(CancellationToken))
 {
     using (var _result = await operations.ListCredentialsWithHttpMessagesAsync(resourceGroupName, registryName, null, cancellationToken).ConfigureAwait(false))
     {
         return(_result.Body);
     }
 }