@class NSArray, NSLayoutDimension, NSLayoutYAxisAnchor; @interface _NSCompositeLayoutYAxisAnchor : NSLayoutYAxisAnchor <NSCompositeLayoutAnchor> { NSLayoutYAxisAnchor *_yAxisAnchor; double _constant; double _dimensionMultiplier; NSLayoutDimension *_dimension; } @property (readonly) NSArray *_childAnchors; - (void)dealloc; - (void)encodeWithCoder:(id)a0; - (id)initWithCoder:(id)a0; - (id)initWithAnchor:(id)a0; - (double)_valueInEngine:(id)a0; - (id)_expressionInContext:(struct { long long x0; id x1; id x2; })a0; - (id)equationDescription; - (id)initWithAnchor:(id)a0 plusDimension:(id)a1 times:(double)a2 plus:(double)a3; @end