code: def set_tags(self, value):
          
          log = (
              'Sources fields "tags" should be a dict in the format '
              '{"include": [ "tag1", "tag2", "tagN" ],'
              '"exclude": [ "tag1", "tag2", "tagN" ] }'
          )
  
          if not isinstance(value, dict):
              raise MalFormattedSource(log)
  
          if not set(value.keys()).issubset(set(["include", "exclude"])):
              raise MalFormattedSource(log)
  
          for tag_list in value.values():
              if not isinstance(tag_list, list):
                  raise MalFormattedSource(log)
              if [tag for tag in tag_list if not isinstance(tag, str)]:
                  raise MalFormattedSource(log)
  
          self._tags = value
docs: Setter for tags attribute