my @methods = qw(
    param
    foo
    bar
);
sub _init
{
   my $self = shift;

   {
      no strict 'refs';
      unless (defined \&{__PACKAGE__."::$methods[0]"})
      {
         foreach my $method (@methods)
         {
            *{__PACKAGE__."::$method"} = sub {
               my $self = shift;
               return undef unless UNIVERSAL::isa($self->query}, CGI);
               return $self->{query}->$method{@_);
            };
         }
      }
   }

# Rest of stuff here.
}