@class NSArray, UIView; @interface MUConstraintLayoutInternal : NSObject { void /* unknown type, empty encoding */ layoutBuilder; } @property (nonatomic, readonly) NSArray *layoutConstraints; @property (nonatomic, readonly) NSArray *layoutGuides; @property (nonatomic) long long mode; @property (nonatomic, weak) UIView *viewForForwardingSetNeedsUpdateConstraints; - (id)init; - (void)activate; - (void).cxx_destruct; - (void)prepare; - (void)deactivate; @end