/// <summary>
/// Creates a delegate that upon invocation return the current <see cref="Scope"/> for this
/// lifestyle and the given <paramref name="container"/>, or null when the delegate is executed outside
/// the context of such scope.
/// </summary>
/// <param name="container">The container for which the delegate gets created.</param>
/// <returns>A <see cref="Func{T}"/> delegate. This method never returns null.</returns>
protected override Func <Scope> CreateCurrentScopeProvider(Container container)
{
Requires.IsNotNull(container, nameof(container));
return(() => GetOrCreateScope(container));
}