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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 deactivate_object(brain_or_object):
 """Deactivate the given object :param brain_or_object: A single catalog brain or content object :type brain_or_object: ATContentType/DexterityContentType/CatalogBrain :returns: Nothing :rtype: None """

    obj = get_object(brain_or_object)
    # we do not want to delete the site root!
    if is_root(obj):
        fail(401, "Deactivating the Portal is not allowed")
    try:
        do_transition_for(brain_or_object, "deactivate")
    except Unauthorized:
        fail(401, "Not allowed to deactivate object '%s'" % obj.getId())