pub unsafe extern "C" fn rd_kafka_interceptor_add_on_send(
rk: *mut rd_kafka_s,
ic_name: *const i8,
on_send: Option<unsafe extern "C" fn(*mut rd_kafka_s, *mut rd_kafka_message_s, *mut c_void) -> rd_kafka_resp_err_t>,
ic_opaque: *mut c_void,
) -> rd_kafka_resp_err_t