These attributes are available when axis is configured. Attribute Python Type MATLAB Type Description tlast np.ndarray[bool] logical Last transfer indicator (when enable_tlast=True) tkeep np.ndarray[uint64] uint64 Byte keep mask (when enable_tkeep=True) tstrb np.ndarray[uint64] uint64 Byte strobe mask (when enable_tstrb=True) tuser np.ndarray[int64] int64 User sideband data (when w_user > 0) tid np.ndarray[int64] int64 Stream ID (when w_id > 0) tdest np.ndarray[int64] int64 Destination ID (when w_dest > 0)