#if WK_API_ENABLED
-WK_API_CLASS
+NS_ASSUME_NONNULL_BEGIN
+
+WK_CLASS_AVAILABLE(macosx(10.10), ios(8.0))
@interface _WKProcessPoolConfiguration : NSObject <NSCopying>
@property (nonatomic, copy) NSURL *injectedBundleURL;
@property (nonatomic) NSUInteger maximumProcessCount;
+@property (nonatomic) BOOL ignoreSynchronousMessagingTimeoutsForTesting WK_API_AVAILABLE(macosx(10.12), ios(10.0));
+
+@property (nonatomic, copy) NSArray<NSURL *> *additionalReadAccessAllowedURLs WK_API_AVAILABLE(macosx(WK_MAC_TBA), ios(WK_IOS_TBA));
+
+// Network Process properties
+// FIXME: These should be be per-session/data store when we support multiple non-persistent sessions/data stores.
+
+@property (nonatomic) NSInteger diskCacheSizeOverride WK_API_AVAILABLE(macosx(10.11), ios(9.0));
+@property (nonatomic, copy) NSArray *cachePartitionedURLSchemes;
+@property (nonatomic, copy) NSArray<NSString *> *alwaysRevalidatedURLSchemes WK_API_AVAILABLE(macosx(10.12), ios(10.0));
+@property (nonatomic) BOOL diskCacheSpeculativeValidationEnabled WK_API_AVAILABLE(macosx(10.12), ios(10.0));
+@property (nonatomic, nullable, copy) NSString *sourceApplicationBundleIdentifier WK_API_AVAILABLE(macosx(10.12.3), ios(10.3));
+@property (nonatomic, nullable, copy) NSString *sourceApplicationSecondaryIdentifier WK_API_AVAILABLE(macosx(10.12.3), ios(10.3));
+@property (nonatomic) BOOL allowsCellularAccess WK_API_AVAILABLE(macosx(WK_MAC_TBA), ios(WK_IOS_TBA));
+@property (nonatomic) BOOL shouldCaptureAudioInUIProcess WK_API_AVAILABLE(macosx(WK_MAC_TBA), ios(WK_IOS_TBA));
+#if TARGET_OS_IPHONE
+@property (nonatomic, nullable, copy) NSString *CTDataConnectionServiceType WK_API_AVAILABLE(ios(10.3));
+@property (nonatomic) BOOL alwaysRunsAtBackgroundPriority WK_API_AVAILABLE(ios(10.3));
+@property (nonatomic) BOOL shouldTakeUIBackgroundAssertion WK_API_AVAILABLE(ios(WK_IOS_TBA));
+#endif
+@property (nonatomic) pid_t presentingApplicationPID WK_API_AVAILABLE(macosx(WK_MAC_TBA), ios(WK_IOS_TBA));
+
@end
+NS_ASSUME_NONNULL_END
+
#endif