Real Life Example
file: code/validad/BreadBoard.pm 216: service 'nowrap' => ( 217: lifecycle => "Singleton", 218: class => 'Template::AutoFilter', 219: block => sub { 220: my $s = shift; 221: my %param = %{ $s->param('default_params') }; 222: return Template::AutoFilter->new( %param, ); 223: }, 224: dependencies => ['default_params'], 225: ); 226: };