cql_server::connection::process_batch(uint16_t stream, request_reader in, service::client_state& client_state, service_permit permit,
        tracing::trace_state_ptr trace_state) {
    ++_server._stats.batch_requests;
    return process(stream, in, client_state, permit, std::move(trace_state), process_batch_internal);
}
cql_server::connection::process_batch(uint16_t stream, request_reader in, service::client_state& client_state, service_permit permit,
        tracing::trace_state_ptr trace_state) {
    ++_server._stats.batch_requests;
    return process(stream, in, client_state, permit, std::move(trace_state), process_batch_internal);
}