def upgrade(self) -> UpgradeRequestBuilder:
        """
        Provides operations to call the upgrade method.
        """
        from .upgrade.upgrade_request_builder import UpgradeRequestBuilder

        return UpgradeRequestBuilder(self.request_adapter, self.path_parameters)

        Provides operations to call the upgrade method.
        
msgraph/generated/chats/item/installed_apps/item/teams_app_installation_item_request_builder.py