SyntaxError: Invalid or unexpected token

[clauBv23]

it is my first time using github-scripts, and I'm not able to find what I'm doing wrong.

I'm trying to run a script that receives as a parameter a previous step output:

- name: Generate testing matrix
        uses: actions/github-script@v6
        id: generator
        with:
          script: |
            const script = require(`${process.env.GITHUB_WORKSPACE}/genMatrix.js`)
            return script(
              ${{ steps.diff.outputs.added_files }},
              ${{ steps.diff.outputs.modified_files }},
              ${{ steps.diff.outputs.renamed_files }},
            );

this is the genMatrix.js content

function buildMatrix(changedFiles, b, c){
  console.log('Matrix changedFiles:', changedFiles);
  console.log('Matrix b:', b);
  console.log('Matrix c:',c);

  return {files: changedFiles};
}

module.exports = buildMatrix;

and I'm getting

Run actions/github-script@v6
SyntaxError: Invalid or unexpected token
    at new AsyncFunction (<anonymous>)
    at callAsyncFunction (/home/runner/work/_actions/actions/github-script/v6/dist/index.js:15143:16)
    at main (/home/runner/work/_actions/actions/github-script/v6/dist/index.js:15236:26)
    at /home/runner/work/_actions/actions/github-script/v6/dist/index.js:152[17](https://github.com/clauBv23/workflow/actions/runs/5808030597/job/15743995075#step:5:18):1
    at /home/runner/work/_actions/actions/github-script/v6/dist/index.js:15268:3
    at Object.<anonymous> (/home/runner/work/_actions/actions/github-script/v6/dist/index.js:15271:12)
    at Module._compile (node:internal/modules/cjs/loader:1105:14)
Error: Unhandled error: SyntaxError: Invalid or unexpected token
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1159:10)
    at Module.load (node:internal/modules/cjs/loader:981:32)
    at Function.Module._load (node:internal/modules/cjs/loader:8[22](https://github.com/clauBv23/workflow/actions/runs/5808030597/job/15743995075#step:5:23):12)

It looks like the problem is when passing the parameters to the script, but I don't know how should be done.

If someone can help me, please

[clauBv23]

Solved it changing

return script(
              ${{ steps.diff.outputs.added_files }},
              ${{ steps.diff.outputs.modified_files }},
              ${{ steps.diff.outputs.renamed_files }},
            );

by

return script(
             ${{ toJSON(steps.diff.outputs.added_files) }},
             ${{ toJSON(steps.diff.outputs.modified_files) }},
             ${{ toJSON(steps.diff.outputs.renamed_files) }},
            );