Summary: Adds special features to nested sequences

Description:
A Sequence is a series of code blocks (actions) that are executed (handled)
within the same context, in series. Each action has access to the sequence
object, can pause it, finish the sequence, add additional actions to be
performed later, or store variables in the context (the heap).

If we had the following action in the above example sequence:

sub {
my $sequence = shift;
$sequence->pause;
...
}

Maintainer: nobody