use strict;
use warnings;
package Neo4j_Test::NetModulePlugin;
use parent 'Neo4j::Driver::Plugin';
sub new {
        my ($class, $net_module) = @_;
        bless \$net_module, $class;
}
sub register {
        my ($self, $manager) = @_;
        my $net_module = $$self;
         
        $manager->add_handler(
                http_adapter_factory => sub {
                        my ($continue, $driver) = @_;
                        return $net_module->new($driver);
                },
        );
}
1;
__END__
This is a tiny wrapper that basically simulates the old net_module
config option using the new plug-in API. It can be used like this:
my $net_module = 'Local::MyOldNetModule';
$driver->plugin( Neo4j_Test::NetModulePlugin->new($net_module) );