code: def set_bucket_type_props(self, bucket_type, props):
          
          self._check_bucket_types(bucket_type)
          msg_code = riak.pb.messages.MSG_CODE_SET_BUCKET_TYPE_REQ
          codec = self._get_codec(msg_code)
          msg = codec.encode_set_bucket_type_props(bucket_type, props)
          resp_code, resp = self._request(msg, codec)
          return True
docs: Set bucket-type properties