/// <summary>
 /// Test explicitly optional complex object. Please put null.
 /// </summary>
 /// <param name='operations'>
 /// The operations group for this extension method.
 /// </param>
 /// <param name='bodyParameter'>
 /// </param>
 /// <param name='cancellationToken'>
 /// The cancellation token.
 /// </param>
 public static async Task PostOptionalClassParameterAsync(this IExplicitModel operations, Product bodyParameter = default(Product), CancellationToken cancellationToken = default(CancellationToken))
 {
     await operations.PostOptionalClassParameterWithHttpMessagesAsync(bodyParameter, null, cancellationToken).ConfigureAwait(false);
 }