/// <summary>
/// Saves the provided <see cref="ParseUser"/> instance with the target Parse Server instance and then authenticates it on the target client. This method should only be used once <see cref="ParseClient.Publicize"/> has been called and <see cref="ParseClient.Instance"/> is the wanted bind target, or if <see cref="ParseObject.Services"/> has already been set or <see cref="ParseObject.Bind(IServiceHub)"/> has already been called on the <paramref name="user"/>.
/// </summary>
/// <param name="serviceHub">The <see cref="IServiceHub"/> instance to target when creating the user and authenticating.</param>
/// <param name="user">The <see cref="ParseUser"/> instance to save on the target Parse Server instance and authenticate.</param>
/// <param name="cancellationToken">The cancellation token.</param>
public static Task SignUpAsync(this IServiceHub serviceHub, ParseUser user, CancellationToken cancellationToken = default)
{
user.Bind(serviceHub);
return(user.SignUpAsync(cancellationToken));
}