src/transformers/models/efficientformer/modeling_efficientformer.py/EfficientFormerIntermediateStage/__init__
class EfficientFormerIntermediateStage:    def __init__(self, config: EfficientFormerConfig, index: int):
        super().__init__()
        self.meta4D_layers = EfficientFormerMeta4DLayers(config, index)