pub unsafe extern "C" fn rd_kafka_conf_set_oauthbearer_token_refresh_cb(
    conf: *mut rd_kafka_conf_t,
    oauthbearer_token_refresh_cb: Option<unsafe extern "C" fn(rk: *mut rd_kafka_t, oauthbearer_config: *const c_char, opaque: *mut c_void)>
)