diff --git a/src/Avalonia.Animation/Animation.cs b/src/Avalonia.Animation/Animation.cs
index 76fbfafaa5..8571d49b42 100644
--- a/src/Avalonia.Animation/Animation.cs
+++ b/src/Avalonia.Animation/Animation.cs
@@ -194,8 +194,14 @@ namespace Avalonia.Animation
         [Content]
         public KeyFrames Children { get; } = new KeyFrames();
 
+        // Store values for the Animator attached properties.
         private static readonly Dictionary<object, Type> s_animators = new Dictionary<object, Type>();
 
+        /// <summary>
+        /// Gets the value of the Animator attached property for an object.
+        /// </summary>
+        /// <param name="obj">The object.</param>
+        /// <returns>The property animator type.</returns>
         public static Type GetAnimator(object obj)
         {
             if (s_animators.TryGetValue(obj, out var type))
@@ -205,6 +211,11 @@ namespace Avalonia.Animation
             return null;
         }
 
+        /// <summary>
+        /// Sets the value of the Animator attached property for an object.
+        /// </summary>
+        /// <param name="obj">The object.</param>
+        /// <param name="value">The property animator value.</param>
         public static void SetAnimator(object obj, Type value)
         {
             s_animators[obj] = value;