def dvar(self) -> DvarRequestBuilder:
        """
        Provides operations to call the dvar method.
        """
        from .dvar.dvar_request_builder import DvarRequestBuilder

        return DvarRequestBuilder(self.request_adapter, self.path_parameters)

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