CodeMirror Merge – Calling a Function on Chunk Approval/Reject

I am using CodeMirror 6, and the @codemirror/merge package. So far I’ve gotten everything UI related working. However, I can not figure out how to trigger a function when the user has either approved or rejected a code chunk.

Here is what my (JS/React) code looks like:

const editorState = EditorState.create({
  doc: modifiedCode,
  extensions: [
    ...extensions,
    showMergeView ? unifiedMergeView({ original: originalCode }) : [],
  ],
});

const view = new EditorView({
  state: editorState,
  parent: editorRef.current,
});

For reference, I want to run a function to know when to turn off merge view. I am doing this by counting the number of chunks returned by getChunks. However, I can not for the life of me figure out how to run a function when the user has interacted with the merge control buttons.