def save()

in src/utils.py [0:0]


    def save(self, model_dir, suffix=''):
        '''
        save the network to model_dir/model_name.suffix.net
        :param model_dir: directory to save the model to
        :param suffix: suffix to append after model name
        '''
        if self.use_cuda:
            self.cpu()

        if suffix == "":
            fname = f"{model_dir}/{self.model_name}.net"
        else:
            fname = f"{model_dir}/{self.model_name}.{suffix}.net"

        th.save(self.state_dict(), fname)
        if self.use_cuda:
            self.cuda()