What do the three paremeters in this mean? adv_mask.set_input_sizes([(73, 129), (103, 182), (52, 92)])

[iDTer]

What do the three parameters in this line mean? I found that the latter is used to create PNet for each size and calc PNet probability map loss, but I don't quite understand how to adjust this to suit my own solution.

adv_mask.set_input_sizes([(73, 129), (103, 182), (52, 92)])

Anyway, THX!