pub unsafe extern "C" fn rd_kafka_conf_set_offset_commit_cb(
    conf: *mut rd_kafka_conf_t,
    offset_commit_cb: Option<unsafe extern "C" fn(rk: *mut rd_kafka_t, err: rd_kafka_resp_err_t, offsets: *mut rd_kafka_topic_partition_list_t, opaque: *mut c_void)>
)