/// <summary>
/// Generates <paramref name="size"/> indicators by calling <paramref name="indicatorFactory"/>.
/// </summary>
/// <param name="source">The indicators that emits <see cref="IUpdatable.OutputCount"/> > 1. and for every <see cref="IUpdatable.OutputCount"/> </param>
/// <param name="indicatorFactory">Factory that uses the passed index to initialize an Indicator.</param>
/// <returns>All indicators created.</returns>
public static IUpdatable[] Factory(IUpdatable source, BindingIndicatorFactoryHandler indicatorFactory)
{
return(source.Explode().Select((selector, i) => indicatorFactory(selector, i)).ToArray());
}