code: def create_meta_data(cls, options, args, parser):
          
          meta_data = []
          meta_data.append(('spiff_version', cls.get_version()))
          if options.target_engine:
              meta_data.append(('target_engine', options.target_engine))
          if options.target_engine:
              meta_data.append(
                  ('target_engine_version', options.target_engine_version))
          return meta_data
docs: Override in subclass if required.