docs: def list_filter(lst, startswith=None, notstartswith=None,
                  contain=None, notcontain=None):
      """ Keep in list items according to filter parameters.
  
      :param lst: item list
      :param startswith: keep items starting with
      :param notstartswith: remove items starting with
      :return:
      """
      keeped = []
      for item in lst:
          keep = False
          if startswith is not None:
              if item.startswith(startswith):
                  keep = True
          if notstartswith is not None:
              if not item.startswith(notstartswith):
                  keep = True
          if contain is not None:
              if contain in item:
                  keep = True
          if notcontain is not None:
              if not notcontain in item:
                  keep = True
  
          if keep:
              keeped.append(item)
      return keeped