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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 _create_orchestrated_cat(self, foreign_catalog_id, db_name, cat_name):
 """Creates a catalog in the current service orchestrated with a foreign service Id."""

        if (foreign_catalog_id.identifier_namespace == db_name + '.' + cat_name and
                foreign_catalog_id.authority == self._authority):
            raise errors.NotFound()  # This is not a foreign catalog
        foreign_service_name = foreign_catalog_id.get_identifier_namespace().split('.')[0]
        # foreign_cat_name = inflection.underscore(foreign_catalog_id.namespace.split('.')[1])
        # catalog_name = foreign_cat_name.lower()
        catalog_name = camel_to_under(foreign_catalog_id.namespace.split('.')[1])
        manager = self._get_provider_manager(foreign_service_name.upper())
        lookup_session = getattr(manager, 'get_{0}_lookup_session'.format(catalog_name))(proxy=self._proxy)
        getattr(lookup_session, 'get_{0}'.format(catalog_name))(foreign_catalog_id)  # Raises NotFound
        collection = JSONClientValidated(db_name,
                                         collection=cat_name,
                                         runtime=self._runtime)
        foreign_identifier = ObjectId(foreign_catalog_id.get_identifier())
        default_text = 'Orchestrated ' + foreign_service_name
        catalog_map = make_catalog_map(cat_name, identifier=foreign_identifier, default_text=default_text)
        collection.insert_one(catalog_map)
        alias_id = Id(identifier=foreign_catalog_id.identifier,
                      namespace=db_name + '.' + cat_name,
                      authority=self._authority)
        try:
            admin_session = getattr(manager, 'get_{0}_admin_session'.format(catalog_name))(proxy=self._proxy)
            getattr(admin_session, 'alias_{0}'.format(catalog_name))(foreign_catalog_id, alias_id)
        except (errors.Unimplemented, AttributeError):
            pass
        return catalog_map