@class NSTimer, NSMapTable; @interface _UIFocusTreeLock : NSObject @property (readonly, nonatomic) NSMapTable *lockedEnvironments; @property (readonly, nonatomic) NSTimer *validationTimer; - (id)init; - (BOOL)isEnvironmentLocked:(id)a0; - (id)description; - (BOOL)unlockEnvironmentTree:(id)a0; - (void).cxx_destruct; - (void)lockEnvironmentTree:(id)a0; - (void)_validateLockedEnvironments; @end