/// <summary>
/// Returns an empty <see cref="ImmSet{T}"/> that uses this eq comparer.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="eq"></param>
/// <returns></returns>
public static ImmSet <T> CreateSet <T>(this IEqualityComparer <T> eq)
{
return(ImmSet <T> .Empty(eq));
}
/// <summary>
/// Returns an empty <see cref="ImmSet{T}"/> that uses default equality semantics.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
public static ImmSet <T> Empty <T>()
{
return(ImmSet <T> .Empty());
}