input: from typing import List
  
  def list_all_countries() -> List[str]:
      """This function should read the countries from the 'data.json' file and return them as a list of strings.
      >>> list_all_countries()
      ['United States', 'Canada', 'Mexico', 'Brazil', 'Argentina', 'United Kingdom', 'France', 'Germany', 'Spain', 'Italy']
      """
output:     import json
      with open('data.json', 'r') as file:
          data = json.load(file)
      return [country['name'] for country in data['countries']]