def subscribe_by_mail(self) -> SubscribeByMailRequestBuilder:
        """
        Provides operations to call the subscribeByMail method.
        """
        from .subscribe_by_mail.subscribe_by_mail_request_builder import SubscribeByMailRequestBuilder

        return SubscribeByMailRequestBuilder(self.request_adapter, self.path_parameters)

        Provides operations to call the subscribeByMail method.
        
msgraph/generated/groups/item/group_item_request_builder.py