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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_catalog_for(self, brain_or_object):
 """Return the primary catalog for the given brain or object """

        if not api.is_object(brain_or_object):
            raise TypeError("Invalid object type %r" % brain_or_object)
        catalogs = api.get_catalogs_for(brain_or_object, default="uid_catalog")
        return catalogs[0]