UnityEditor.CurveEditorWindow.GetConstantKeys C# (CSharp) Method

        internal static Keyframe[] GetConstantKeys(float value)
        {
            Keyframe[] keys = new Keyframe[] { new Keyframe(0f, value, 0f, 0f), new Keyframe(1f, value, 0f, 0f) };
            SetSmoothEditable(ref keys);
            return keys;
        }

 private static List <DoubleCurve> GetSignedDoubleCurveDefaults()
 {
     return(new List <DoubleCurve>()
     {
         new DoubleCurve(new AnimationCurve(CurveEditorWindow.GetConstantKeys(-1f)), new AnimationCurve(CurveEditorWindow.GetConstantKeys(1f)), true)
     });
 }