What's stopping you from using procedural programming? 
sub my_serialize {
    my $obj = shift;
    if (check_some_condition($obj)) {
        return freeze replace($obj)
    }
    return freeze $obj; # serialize $obj as is
};

my $data = my_serialize($tree)

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In reply to Re: Storable alternatives by vsespb
in thread Storable alternatives by salva

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