package Foo;
# use Modules;
# set up @EXPORT, @EXPORT_OK etc for functional interface

sub new {
  my $class = shift;
  my $self = {};
  bless ($self, $class);
}

sub print_args {
  my $self = shift;
  my %args = @_;

  print $args{'foo'}, $args{'bar'}, "\n";
}

package Bar;

$obj = Foo->new();
$obj->Foo::print_args(foo => "Perl", bar => "Monks");
exit;