+ foreach ($imported as $subCollection) {
+ /* @var $subCollection RouteCollection */
+ $subCollection->addPrefix($prefix);
+ if (null !== $host) {
+ $subCollection->setHost($host);
+ }
+ if (null !== $condition) {
+ $subCollection->setCondition($condition);
+ }
+ if (null !== $schemes) {
+ $subCollection->setSchemes($schemes);
+ }
+ if (null !== $methods) {
+ $subCollection->setMethods($methods);
+ }
+ $subCollection->addDefaults($defaults);
+ $subCollection->addRequirements($requirements);
+ $subCollection->addOptions($options);
+
+ $collection->addCollection($subCollection);
+ }