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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _get_lab_color1_vector(color):
 """ Converts an LabColor into a NumPy vector. :param LabColor color: :rtype: numpy.ndarray """

    if not color.__class__.__name__ == 'LabColor':
        raise ValueError(
            "Delta E functions can only be used with two LabColor objects.")
    return numpy.array([color.lab_l, color.lab_a, color.lab_b])