It's a good example of the limitations of AI: it looks like a comprehensive and detailed answer, but it refers to features that don't exist, the Pin behavior is largely superseded by scene graph, and using the Pin behavior is the wrong solution anyway. I'd give the answer as "use a left-aligned origin on the stretched sprite, set the position to the first sprite, set the angle to the angle to the second sprite, and set the width to the distance to the second sprite".
The JavaScript code it generated is also wrong, refering to APIs that don't exist or are named wrong.