def subtotal(self) -> SubtotalRequestBuilder:
        """
        Provides operations to call the subtotal method.
        """
        from .subtotal.subtotal_request_builder import SubtotalRequestBuilder

        return SubtotalRequestBuilder(self.request_adapter, self.path_parameters)

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