Fix tdutils after merge.

GitOrigin-RevId: 5b9a863e405a9e3782157570156fda71bf2bb589

1 files changed, 7 insertions, 5 deletions

diff --git a/tdutils/td/utils/TimedStat.h b/tdutils/td/utils/TimedStat.h
index bbd4f16b2..6969f50e3 100644
--- a/tdutils/td/utils/TimedStat.h
+++ b/tdutils/td/utils/TimedStat.h
@@ -9,6 +9,7 @@
 #include "td/utils/common.h"
 #include "td/utils/optional.h"
 
+#include <functional>
 #include <utility>
 
 namespace td {
@@ -69,27 +70,28 @@ class TimedStat {
   }
 };
 
+namespace detail {
 template <class T, class Cmp>
 struct MinMaxStat {
- public:
   using Event = T;
   void on_event(Event event) {
     if (!best_ || Cmp()(event, best_.value())) {
       best_ = event;
     }
   }
-  td::optional<T> get_stat() const {
+  optional<T> get_stat() const {
     return best_.copy();
   }
 
  private:
-  td::optional<T> best_;
+  optional<T> best_;
 };
+}  // namespace detail
 
 template <class T>
-using MinStat = MinMaxStat<T, std::less<>>;
+using MinStat = detail::MinMaxStat<T, std::less<>>;
 
 template <class T>
-using MaxStat = MinMaxStat<T, std::greater<>>;
+using MaxStat = detail::MinMaxStat<T, std::greater<>>;
 
 }  // namespace td