docs: def match_filter(self, idx_list, pattern, dict_type=False,
                       dict_key='name'):
          """Return Matched items in indexed files.
  
          :param idx_list:
          :return list
          """
  
          if dict_type is False:
              return self._return_deque([
                  obj for obj in idx_list
                  if re.search(pattern, obj)
              ])
          elif dict_type is True:
              return self._return_deque([
                  obj for obj in idx_list
                  if re.search(pattern, obj.get(dict_key))
              ])
          else:
              return self._return_deque()