def tie_aux_decoder_weights(self, module, aux_modules):
        """Tie decoder weights of all `aux_modules` to `module`, (not bias)"""
        for m in aux_modules:
            m.predictions.decoder.weight = module.predictions.decoder.weight
Tie decoder weights of all `aux_modules` to `module`, (not bias)
video_chat2/models/bert/xbert.py