def METHOD_NAME(obj: np.ndarray, store=None) -> np.ndarray:
    if not isinstance(obj, np.ndarray):
        raise TypeError("input must be a np.ndarray")
    if len(obj.shape) == 1:
        res = np.reshape(obj, (-1, 1))
    else:
        raise TypeError("input must be 1D np.ndarray")
    return res