/// <param name='operations'>
/// The operations group for this extension method.
/// </param>
/// <param name='lang'>
/// </param>
/// <param name='cancellationToken'>
/// The cancellation token.
/// </param>
public static async Task SendConfirmationMailAsync(this INotificationsApi operations, string lang, CancellationToken cancellationToken = default(CancellationToken))
{
(await operations.SendConfirmationMailWithHttpMessagesAsync(lang, null, cancellationToken).ConfigureAwait(false)).Dispose();
}