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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 is_none(obj):
 """ Check to see if an object is None or not. Handles the case of np.array(None) as well. Parameters obj : object Any object type to be checked Returns is_none : bool True if obj is None or numpy None-like """

    if obj is None:
        return True
    if (is_sequence(obj) and
        len(obj) == 1 and
            obj[0] is None):
        return True
    return False