Difference between Grow_network and Flush_network

[siddu9501]

Can someone explain the difference between grow and flush components? At a higher level, from what i see, both add layers during training highlighting the progressive part.
Also, what are the to_rgb, from_rgb, fade_in and concat blocks ?

[JosephKJ]

flush_network flushes out 'concat_block' 'fadein_block' modules from model definition.

Kindly read through the paper to understand more.