#pragma once
#include <stddef.h>
namespace std {
template<typename T> class optional;
}
namespace WTF {
class AtomicString;
class AtomicStringImpl;
class BinarySemaphore;
class CString;
class CrashOnOverflow;
class FunctionDispatcher;
class Hasher;
class MonotonicTime;
class OrdinalNumber;
class PrintStream;
class SHA1;
class Seconds;
class String;
class StringBuilder;
class StringImpl;
class StringView;
class TextPosition;
class TextStream;
class WallTime;
struct FastMalloc;
template<typename> class CompletionHandler;
template<typename T> struct DumbPtrTraits;
template<typename T> struct DumbValueTraits;
template<typename> class Function;
template<typename> class LazyNeverDestroyed;
template<typename> class NeverDestroyed;
template<typename> class OptionSet;
template<typename T, typename = DumbPtrTraits<T>> class Ref;
template<typename T, typename = DumbPtrTraits<T>> class RefPtr;
template<typename> class StringBuffer;
template<typename, typename = void> class StringTypeAdapter;
template<typename> struct DefaultHash { using Hash = void; };
template<typename> struct HashTraits;
template<typename...> class Variant;
template<typename, size_t = 0, typename = CrashOnOverflow, size_t = 16, typename = FastMalloc> class Vector;
template<typename Value, typename = typename DefaultHash<Value>::Hash, typename = HashTraits<Value>> class HashCountedSet;
template<typename KeyArg, typename MappedArg, typename = typename DefaultHash<KeyArg>::Hash, typename = HashTraits<KeyArg>, typename = HashTraits<MappedArg>> class HashMap;
template<typename ValueArg, typename = typename DefaultHash<ValueArg>::Hash, typename = HashTraits<ValueArg>> class HashSet;
}
namespace std {
namespace experimental {
inline namespace fundamentals_v3 {
template<class, class> class expected;
template<class> class unexpected;
}}}
using WTF::AtomicString;
using WTF::AtomicStringImpl;
using WTF::BinarySemaphore;
using WTF::CString;
using WTF::CompletionHandler;
using WTF::DumbPtrTraits;
using WTF::DumbValueTraits;
using WTF::Function;
using WTF::FunctionDispatcher;
using WTF::HashCountedSet;
using WTF::HashMap;
using WTF::HashSet;
using WTF::Hasher;
using WTF::LazyNeverDestroyed;
using WTF::NeverDestroyed;
using WTF::OptionSet;
using WTF::OrdinalNumber;
using WTF::PrintStream;
using WTF::Ref;
using WTF::RefPtr;
using WTF::SHA1;
using WTF::String;
using WTF::StringBuffer;
using WTF::StringBuilder;
using WTF::StringImpl;
using WTF::StringView;
using WTF::TextPosition;
using WTF::TextStream;
using WTF::Variant;
using WTF::Vector;
template<class T, class E> using Expected = std::experimental::expected<T, E>;
template<class E> using Unexpected = std::experimental::unexpected<E>;