code: def gen_find_method(ele_type, multiple=True, extra_maps=None):
      
      _ = 'elements' if multiple else 'element'
      d = {
          'class': 'class_name'
      }
      if isinstance(extra_maps, dict):
          d = dict(d, **extra_maps)
      return 'find_{}_by_{}'.format(_, d.get(ele_type, ele_type))
docs: 将 ele_type 转换成对应的元素查找方法
      e.g::
  
          make_elt(ele_type=name, False) => find_element_by_name
          make_elt(ele_type=name, True) => find_elements_by_name
  
      :param ele_type:
      :type ele_type:
      :param multiple:
      :type multiple:
      :param extra_maps:
      :type extra_maps:
      :return: