our $AUTOLOAD;
sub AUTOLOAD {
    my( $self )= shift @_;
    my( $class, $method )= $AUTOLOAD =~ /^(.+)(?:'|::)(.+)$/
        or  die "Invalid method name: $AUTOLOAD";
    return
        if  'DESTROY' eq $method;
    die "Can't call internal method, $method, via ", __PACKAGE__, $/
        if  $method =~ /^_/;
    return $self->{whatever}->$method( @_ );
}