Splunk step

Same as elastic step - I'd like to be able to check if message was sent to splunk. Or even query splunk.

Start by locating the existing elastic step referenced in the issue and comparing its behavior with the requested Splunk step. No file or test is named, so first identify the relevant module entry point and how integrations are tested. Done should mean supporting a way to verify delivery to Splunk or query Splunk, with the expected behavior clarified.

Written by the indexing model from the issue text.