def t_inv(self) -> T_InvRequestBuilder:
        """
        Provides operations to call the t_Inv method.
        """
        from .t_inv.t_inv_request_builder import T_InvRequestBuilder

        return T_InvRequestBuilder(self.request_adapter, self.path_parameters)

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