An question

[zzt941006]

for i in range(self.nb_blocks) :
# 6 -> 12 -> 48
x = self.dense_block(input_x=x, nb_layers=4, layer_name='dense_'+str(i))
x = self.transition_layer(x, scope='trans_'+str(i))
What about those codes mean?
All nb_layers equals 4?
why use this code in Densenet_MNIST.py?