How to upload a file using QA Wolf and Puppeteer?

I am struggling to upload a file using qawolf and puppeteer through an input. According to qawolf, they plan to develop their own upload file feature, so in the meantime I need to use the one from puppeteer's (which qawolf is dependent of).

However, I keep running into the error:

  FAIL  .qawolf/uploadDataSetInProject.test.js (17.394 s)
  ✕ uploadDataSetInProject (13354 ms)

  ● uploadDataSetInProject

    TypeError: uploadElement.uploadFile is not a function

      42 |   await page.fill('[placeholder="Data set description"]', "I am a dataset description");
      43 |   const uploadElement = await page.$('#dataset-inputs > div.project-upload-container > div.project-upload-dataset > input[type=file]');
    > 44 |   await uploadElement.uploadFile('../assets/TestFile10Mo.csv');
         |                       ^
      45 |   await qawolf.scroll(page, "html", { x: 0, y: 571 });
      46 |   await page.click(".button-save");
      47 |   await page.click(".comments-button");

      at Object.test (uploadDataSetInProject.test.js:44:23)

Whereas the puppeteer's docs clearly state that the function uploadFile exists !

Where does this problem come from ? How come uploadFile is not a function ?

Here is my code:

const qawolf = require("qawolf");

let browser;
let context;

beforeAll(async () => {
  browser = await qawolf.launch();
  context = await browser.newContext();
  await qawolf.register(context);
});

afterAll(async () => {
  await qawolf.stopVideos();
  await browser.close();
});

test("uploadDataSetInProject", async () => {
  const page = await context.newPage();
  [...]
  await page.click('[placeholder="Data set description"]');
  await page.fill('[placeholder="Data set description"]', "I am a dataset description");
  const uploadElement = await page.$('#dataset-inputs > div.project-upload-container > div.project-upload-dataset > input[type=file]');
  await uploadElement.uploadFile('../assets/TestFile10Mo.csv'); // The test crashes here
  await page.click(".button-save");
  await page.click(".comments-button");
  await page.click(".size");
  await page.click(".off");
});