docs: def get_orm_classes(path):
      """this will return prom.Orm classes found in the given path (classpath or modulepath)"""
      ret = set()
      try:
          m = importlib.import_module(path)
  
      except ImportError:
          # we have a classpath
          m, klass = get_objects(path)
          if issubclass(klass, Orm):
              ret.add(klass)
  
      else:
          ret.update(get_subclasses(m, Orm))
  
      return ret