def sign(self) -> SignRequestBuilder:
        """
        Provides operations to call the sign method.
        """
        from .sign.sign_request_builder import SignRequestBuilder

        return SignRequestBuilder(self.request_adapter, self.path_parameters)

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