#include <folly/futures/WangleException.h>
#include <folly/futures/detail/Types.h>
-namespace folly { namespace wangle {
+namespace folly {
template <class> struct Promise;
template <typename T, class Dur>
Future<T> waitWithSemaphore(Future<T>&& f, Dur timeout);
-}} // folly::wangle
+} // folly
#include <folly/futures/Future-inl.h>