Validate the data arguments X and y.

        By default, NumPy arrays are converted to 1-block dask arrays.

        Parameters
        ----------
        X, y : array-like

def _check_array(self, X, **kwargs):
        """Validate the data arguments X and y.

        By default, NumPy arrays are converted to 1-block dask arrays.

        Parameters
        ----------
        X, y : array-like
        """
        if isinstance(X, np.ndarray):
            X = da.from_array(X, X.shape)
        X = check_array(X, **kwargs)
        return X