null_init, null_free, null_reconfig, null_send, null_sendbuffer, null_size,
null_special, null_get_specials, null_connected, null_exitcode, null_sendok,
null_ldisc, null_provide_ldisc, null_provide_logctx, null_unthrottle,
null_init, null_free, null_reconfig, null_send, null_sendbuffer, null_size,
null_special, null_get_specials, null_connected, null_exitcode, null_sendok,
null_ldisc, null_provide_ldisc, null_provide_logctx, null_unthrottle,