Autoreply with fixed password

Hi all,

I would like to set the same password when a new user creates its first
ticket.
What is the right sintax to use in the autoreply template instead of
calling SetRandomPassowrd ?

    my $user = RT::User->new($RT::SystemUser);
    $user->Load($Transaction->CreatorObj->Id);
    my ($stat, $pass) = $user->SetRandomPassword();

Thanks in advance,
Valter