def __init__(self, channels_first: bool, **kwargs) -> None:
        """
        Initialize a neural network attributes.

        :param channels_first: Set channels first or last.
        """
        self._channels_first: bool = channels_first
        super().__init__(**kwargs)  # type: ignore

        Initialize a neural network attributes.

        :param channels_first: Set channels first or last.
        
art/estimators/estimator.py