my %defaults = (
    ssl     => 1,
    port    => 12345,
    timeout => 42,
);
for my $name (@ldap_attrs) {
    my $reader = 'get_' . $name;
    my $writer = 'set_' . $name;
    my @default;
    if (exists $defaults{$name}) {
        @default = (default => $defaults{$name});
    }
    has $name => (
                  is       => 'rw',
                  reader   => $reader,
                  writer   => $writer,
                  required => 0,
                  @default,
                 );
  }