Splunk Inc
splunk_aoblib
splunktaucclib
https://splunkbase.splunk.com/app/2962/
provided as part of Splunk Add-on Builder
https://www.splunk.com/en_us/legal/splunk-app-end-user-license-agreement.html
Also:
splunk-sdk-python
https://github.com/splunk/splunk-sdk-python
Apache 2 license