docs: def find_untl_errors(untl_dict, **kwargs):
      """Add empty required qualifiers to create valid UNTL."""
      fix_errors = kwargs.get('fix_errors', False)
      error_dict = {}
      # Loop through all elements that require qualifiers.
      for element_name in REQUIRES_QUALIFIER:
          # Loop through the existing elements that require qualifers.
          for element in untl_dict.get(element_name, []):
              error_dict[element_name] = 'no_qualifier'
              # If it should be fixed, set an empty qualifier
              # if it doesn't have one.
              if fix_errors:
                  element.setdefault('qualifier', '')
      # Combine the error dict and UNTL dict into a dict.
      found_data = {
          'untl_dict': untl_dict,
          'error_dict': error_dict,
      }
      return found_data