#include <folly/Memory.h>
#include <folly/RWSpinLock.h>
#include <folly/Synchronized.h>
#include <folly/detail/StaticSingletonManager.h>
#include <folly/experimental/ReadMostlySharedPtr.h>
#include <folly/Memory.h>
#include <folly/RWSpinLock.h>
#include <folly/Synchronized.h>
#include <folly/detail/StaticSingletonManager.h>
#include <folly/experimental/ReadMostlySharedPtr.h>