def input_dim(self):
        """
        Dimension that can be used by transforms to set the correct image size, etc.
        This allows transforms to have a single source of truth
        for the input dimension of the network.

        Return:
            list: Tuple containing the current width,height
        """
        if hasattr(self, "_input_dim"):
            return self._input_dim
        return self.__input_dim

        Dimension that can be used by transforms to set the correct image size, etc.
        This allows transforms to have a single source of truth
        for the input dimension of the network.

        Return:
            list: Tuple containing the current width,height
        
yolox/data/datasets/datasets_wrapper.py