Batch size in train.py

[MatiasSaez]

Hello, first of all I want to say this is the most useful tutorial about object detection using SSD frameworks i've red so far.
In line 20 of train.py a batch_size =8 is defined and then it is passed to the DataLoader in line 71. But, later, in lines 78 and 79, there is a batch size of 32 hardcoded in the formula. Shouldn't be used here the variable batch_size or am I missing something?
Thanks in advance!

[toomy0toons]

later, in lines 78 and 79, there is a batch size of 32 hardcoded
the batch size above is used to calculate total training epoch, becuase the training epoch of the original paper is 120000 iterations / batch_size(32)