Isn't RPN used in the training phase?

[insanebai]

Hello, thank you for your excellent work. I have a question. I downloaded the project file directly. According to the yaml debugging, I found that the following parameters were set to False during the training phase. Does it mean that RPN is not used during the training phase? TRAIN_BBREG_ON: False TRAIN_RPN: False TRAIN_BACKBONE: False