{
  package My::Logger;
  our @EXPORT = qw/log_message/;
  use parent qw/Exporter/;
  sub log_message {
    my ($message) = @_;
    print STDERR "$PACKAGE - $message";
  }
}
{
  package My::Script;
  # if these were separate files, we'd use "use My::Logger"
  My::Logger->import;
  # want this to say "My::Script - Hello"
  log_message("Hello");
}