AT_CellularDevice "open_xxxxxx" API

Mbed OS
1

For the CellularDevice class, I am curious if you can open multiple handlers without closing the previous one. For example, can you do:

info = CellularDevice->open_information(uartFileHandle);
network = CellularDevice->open_network(uartFileHandle);

info->get_manufacturer(...);
network->get_signal_quality(...);
info->get_model(...);

or, can I only have 1 open at a time, e.g. :

info = CellularDevice->open_information(uartFileHandle);
info->get_manufacturer(...);
CellularDevice->close_information();

network = CellularDevice->open_network(uartFileHandle);
network->get_signal_quality(...);
CellularDevice->close_network();