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AnimationUtils Utility class for animations containing Material interpolators. 
AnimatorSetCompat Compatibility utils for AnimatorSet
ArgbEvaluatorCompat This evaluator can be used to perform type interpolation between integer values that represent ARGB colors. 
ChildrenAlphaProperty A Property for the alpha of a ViewGroup's children. 
DrawableAlphaProperty Compat property for Drawable and Drawable for pre-K devices. 
ImageMatrixProperty Property wrapper for ERROR(/ImageView#getImageMatrix()) and ERROR(/ImageView#setImageMatrix(Matrix))
MatrixEvaluator Type evaluator for ERROR(/Matrix) interpolation. 
MotionSpec A motion spec contains multiple named motion timings
MotionTiming A representation of timing for an animation. 
Positioning A representation of the positioning of a view relative to another.