    def _get_init_lr(self):
        """Get the initial lr, which is set by the scheduler.
        """
        init_lr_groups_l = []
        for optimizer in self.optimizers:
            init_lr_groups_l.append([v['initial_lr'] for v in optimizer.param_groups])
        return init_lr_groups_l
Get the initial lr, which is set by the scheduler.
opensora/models/super_resolution/basicsr/models/base_model.py