Cherry pick https://github.com/ntippie/qbo_api/commit/9e0fbcfd4e8548827a77fcb31a837485adc2fe4a for iso8601 method
Cherry pick https://github.com/ntippie/qbo_api/commit/9e0fbcfd4e8548827a77fcb31a837485adc2fe4a for iso8601 method

minimul/qbo_api,minimul/qbo_api,minimul/qbo_api