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    if(  is_blacklisted($source,$dest,$acct,$parent,$optout)  ) {

sub is_listed {
    my( $self, $source, $color, @lists ) = @_;
...
        }
    }
}

    my $is_blacklisted = App::Blacklist->is_blacklisted(
        $source, $dest, $acct, $parent, $optout,
...
        $self->reject();
        return;
    }

    $item->save();

    $item->save() if $item->is_dirty();

    $musket->insert( $powder );
    $musket->insert( $ball );
...
# vs
    $pistol->shoot( $target );
    $pistol->shoot( $target );