code: def tie_prop_to_class(prop, cls_name):
      
      attr_list = [attr for attr in dir(prop) if type(attr, Uri)]
      prop_defs = kwargs.pop('prop_defs')
      prop_name = kwargs.pop('prop_name')
      cls_name = kwargs.pop('cls_name')
      if cls_name == 'RdfClassBase':
          return {}
      doc_string = make_doc_string(name,
                                   prop_defs,
                                   bases,
                                   None)
      new_def = prepare_prop_defs(prop_defs, prop_name, cls_name)
      new_def['__doc__'] = doc_string
      new_def['_cls_name'] = cls_name
      new_def['_prop_name'] = prop_name
      if prop_name == 'rdf_type':
          new_def['append'] = unique_append
      # if prop_name == 'rdf_type':
      #     pdb.set_trace()
      new_def['_init_processors'] = get_processors('kds_initProcessor',
                                                   prop_defs)
      new_def['_es_processors'] = get_processors('kds_esProcessor',
                                                 prop_defs,
                                                 'es_values')
      # pdb.set_trace()
      return new_def
docs: reads through the prop attributes and filters them for the associated
      class and returns a dictionary for meta_class __prepare__
  
      args:
          prop: class object to read
          cls_name: the name of the class to tie the porperty to