Node
constructor( response_name: String? = null, index: Int? = null, original_field_name: String = "", type: String = "", parent_type: String = "", cache_policy: Trace.CachePolicy? = null, start_time: Long = 0, end_time: Long = 0, error: List<Trace.Error> = emptyList(), child: List<Trace.Node> = emptyList(), unknownFields: ByteString = ByteString.EMPTY)