/// <summary>
/// Deteremines if an image has been downloaded.
/// </summary>
/// <param name="client"></param>
/// <param name="imageId"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public static async Task <bool> DoesImageExistAsync(this IDockerClient client, string imageId,
CancellationToken cancellationToken)
{
var image = await client.GetImageAsync(imageId, cancellationToken);
return(image != null);
}
