public function test_TypeWithDefaultParam2()
 {
     $this->builder->registerType('ClassE')->named('f1')->withParams(Parameter::def());
     $this->exchange();
     $f = $this->container->resolveNamed('f1');
     $this->assertEquals('default', $f->value);
 }
 public function fromArray(array $configuration)
 {
     return Parameter::def();
 }