Can the Keyframe stretcher reverse an animation?

This question relates to the "rotate in and out" Fusion title that is found in the titles tab of the edit page.

I opened its node graph (attached) and while I can see how the initial rotating in animation is done, I can't quite figure out how the rotating out is done. It seems as though the keyframe stretcher at the end of the node tree is responsible for doing some sort of reverse animation of the nodes before it. I tried to create a similar node tree to see if I could repeat that function but I failed. Can anyone explain the science behind this?

There are keyframes on the x and y rotation of the DVE node. They rotate it in at the beginning and out at the end. The KeyframeStretcher just allows you to lengthen the Title and the beginning and end animation will work the same with a longer gap in the middle.

That's right. Thanks for the reply.

I guess my clip was too short to see the keyframes for the rotate out so I just thought the magic was happening with the keyframe stretcher.