Why does this function throw an error when using the includes method?

I'm having trouble figuring out why this function throws an error when it reaches the 'includes' method, when console logging whitelist, it shows that it is an array, when i use the includes method, it is throwing an error, cannot read property includes of undefined

const test = (body, ...whitelists) => {
  const bodies = whitelists.map(({ type = null, whitelist }) => {
    console.log('whitelist ', whitelist)

    const whitelistedBody = Object.entries(body).reduce(
      (newBody, [key, value]) => {
        console.log('KEY ', key)
        console.log('whitelist ', whitelists)

        if (whitelist.includes(key)) {
          newBody[key] = value;
        }

        console.log('newBody ', newBody)
        return newBody;
      },
      {}
    );

    return { type, body: whitelistedBody };
  });

  return (
    bodies.find(({ body }) => Object.keys(body).length) || {
      body: {},
      type: null,
    }
  );
};

test({firstKey: '123'}, ['firstKey']);