sub simple {
      my( $this, $that, $other )= @_;

##</code><code>##

    sub complex {
      my $this= shift(@_);
      my $that= shift(@_);
      my $other= shift(@_);

##</code><code>##

    sub pretty {
      my $first=    shift(@_);
      my $second=   shift(@_);
      my $optional= shift(@_);