def SubscribeInvoices(self, request, context):
        """
        SubscribeInvoices returns a uni-directional stream (server -> client) for
        notifying the client of newly added/settled invoices. The caller can
        optionally specify the add_index and/or the settle_index. If the add_index
        is specified, then we'll first start by sending add invoice events for all
        invoices with an add_index greater than the specified value. If the
        settle_index is specified, the next, we'll send out all settle events for
        invoices with a settle_index greater than the specified value. One or both
        of these fields can be set. If no fields are set, then we'll only send out
        the latest add/settle events.
        """
        context.set_code(grpc.StatusCode.UNIMPLEMENTED)
        context.set_details('Method not implemented!')
        raise NotImplementedError('Method not implemented!')

        SubscribeInvoices returns a uni-directional stream (server -> client) for
        notifying the client of newly added/settled invoices. The caller can
        optionally specify the add_index and/or the settle_index. If the add_index
        is specified, then we'll first start by sending add invoice events for all
        invoices with an add_index greater than the specified value. If the
        settle_index is specified, the next, we'll send out all settle events for
        invoices with a settle_index greater than the specified value. One or both
        of these fields can be set. If no fields are set, then we'll only send out
        the latest add/settle events.
        
home.admin/config.scripts/lndlibs/lightning_pb2_grpc.py