input: Write a function to update the given Python program to correctly perform an API request using the `requests` library, add required headers, and parse the response data. The function should accept a URL and an API token, and it should return the parsed response data.
  
  assert make_api_request('https://api.example.com/users', 'YOUR_API_TOKEN')==[{'id': 1, 'name': 'Alice'},{'id': 2, 'name': 'Bob'}]
output: def make_api_request(url, api_token):
      headers = {'Authorization': f'Bearer {api_token}'}
      response = requests.get(url, headers=headers)
      return response.json()