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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_catalogs_for(brain_or_object, default="portal_catalog"):
 """Get all registered catalogs for the given portal_type, catalog brain or content object :param brain_or_object: The portal_type, a catalog brain or content object :type brain_or_object: ATContentType/DexterityContentType/CatalogBrain :returns: List of supported catalogs :rtype: list """

    archetype_tool = get_tool("archetype_tool", None)
    if not archetype_tool:
        # return the default catalog
        return [get_tool(default)]

    catalogs = []

    # get the registered catalogs for portal_type
    if is_object(brain_or_object):
        catalogs = archetype_tool.getCatalogsByType(
            get_portal_type(brain_or_object))
    if isinstance(brain_or_object, basestring):
        catalogs = archetype_tool.getCatalogsByType(brain_or_object)

    if not catalogs:
        return [get_tool(default)]
    return catalogs