&hello_world;

##</code><code>##

# Loads a file into a package.
sub load_lib {
  my $file = shift;
  my $pkg = shift;
  my $ret = eval "package $pkg; do '$file';";
  if (not defined($ret)) {
    $@ and confess("Cannot parse '$file': $@");
    $! and confess("Cannot load '$file': $!");
    warn("Loading '$file' did not return a defined value");
  }
  $ret;
}