docs: def are_equal_or_superset(superset_tree, base_tree):
      """Return True if ``superset_tree`` is equal to or a superset of ``base_tree``
  
      - Checks that all elements and attributes in ``superset_tree`` are present and
        contain the same values as in ``base_tree``. For elements, also checks that the
        order is the same.
      - Can be used for checking if one XML document is based on another, as long as all
        the information in ``base_tree`` is also present and unmodified in
        ``superset_tree``.
  
      """
      try:
          _compare_attr(superset_tree, base_tree)
          _compare_text(superset_tree, base_tree)
      except CompareError as e:
          logger.debug(str(e))
          return False
      return True