def upper(self) -> UpperRequestBuilder:
        """
        Provides operations to call the upper method.
        """
        from .upper.upper_request_builder import UpperRequestBuilder

        return UpperRequestBuilder(self.request_adapter, self.path_parameters)

        Provides operations to call the upper method.
        
msgraph/generated/drives/item/items/item/workbook/functions/functions_request_builder.py