test

My project/Library/PackageCache/com.unity.timeline/Samples~/Customization/Tween/TweenTrack.cs

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+using UnityEngine;
+using UnityEngine.Playables;
+using UnityEngine.Timeline;
+
+namespace Timeline.Samples
+{
+    // A track that allows the user to do simple transform movements.
+    // It demonstrates how to define a custom track mixer in order to support blending of clips.
+    [TrackColor(1.0f, 0.0f, 0.0f)]
+    [TrackBindingType(typeof(Transform))]
+    [TrackClipType(typeof(TweenClip))]
+    public class TweenTrack : TrackAsset
+    {
+        // Creates a runtime instance of the track, represented by a PlayableBehaviour.
+        // The runtime instance performs mixing on the clips.
+        public override Playable CreateTrackMixer(PlayableGraph graph, GameObject go, int inputCount)
+        {
+            return ScriptPlayable<TweenMixerBehaviour>.Create(graph, inputCount);
+        }
+    }
+}