/// <summary>
/// Crop image to face (square)
/// </summary>
/// Crop an image to the face (rectangular crop). If there is more than one
/// face present, choose the first one.
/// <param name='operations'>
/// The operations group for this extension method.
/// </param>
/// <param name='imageFile'>
/// Image file to perform the operation on. Common file formats such as PNG,
/// JPEG are supported.
/// </param>
/// <param name='cancellationToken'>
/// The cancellation token.
/// </param>
public static async Task <System.IO.Stream> CropFirstAsync(this IFace operations, System.IO.Stream imageFile, CancellationToken cancellationToken = default(CancellationToken))
{
var _result = await operations.CropFirstWithHttpMessagesAsync(imageFile, null, cancellationToken).ConfigureAwait(false);
_result.Request.Dispose();
return(_result.Body);
}