code: def create_templates_static_files(app_path):
      
      templates_path = os.path.join(app_path, 'templates')
      static_path = os.path.join(app_path, 'static')
      _mkdir_p(templates_path)
      _mkdir_p(static_path)
      # create {img, css, js}
      os.chdir(static_path)
      img_path = os.path.join(static_path, 'img')
      css_path = os.path.join(static_path, 'css')
      js_path = os.path.join(static_path, 'js')
      _mkdir_p(img_path)
      _mkdir_p(css_path)
      _mkdir_p(js_path)
  
      return css_path, templates_path
docs: create templates and static