optional<string>returning__payment_id=ptrTo_taskAsyncContext->payment_id_string;// separated from submit_raw_tx_fn so that it can be captured w/o capturing all of args (FIXME: does this matter anymore?)
optional<string>returning__payment_id=ptrTo_taskAsyncContext->payment_id_string;// separated from submit_raw_tx_fn so that it can be captured w/o capturing all of args