def before_run(self, runner):
        """To resume model with it's ema parameters more friendly.

        Register ema parameter as ``named_buffer`` to model
        """
        model = runner.model
        if is_module_wrapper(model):
            model = model.module
        self.param_ema_buffer = {}
        self.model_parameters = dict(model.named_parameters(recurse=True))
        for name, value in self.model_parameters.items():
            # "." is not allowed in module's buffer name
            buffer_name = f"ema_{name.replace('.', '_')}"
            self.param_ema_buffer[name] = buffer_name
            model.register_buffer(buffer_name, value.data.clone())
        self.model_buffers = dict(model.named_buffers(recurse=True))
        if self.checkpoint is not None:
            runner.resume(self.checkpoint)
To resume model with it's ema parameters more friendly.

        Register ema parameter as ``named_buffer`` to model
        
ControlNet-v1-1-nightly/annotator/uniformer/mmcv/runner/hooks/ema.py