class User {
  has $.username;
  has $!password;
  has @.characters;

  method new($username, $password, @characters) {
    self.bless(:$username, :$password, :@characters); # password is never set
  }

  submethod BUILD (:$!password) {
    callsame;
  }

  method checkPass($passAttempt) {
    say "CHECK: " ~ $!password;
    return $passAttempt eq $!password;
  }
}