object property
Object is the key inside that bucket. Empty only while the media server has not named a file yet. It says WHERE the recording is, not how to fetch it. Reading one back is a separate decision this surface deliberately does not make: a link to a private conversation needs its own answer about who may follow it and for how long, and inventing a short one here would be worse than not having it.
Please note: This property should have been non-nullable! Since the specification file does not include a default value (using the "default:" property), however, the generated source code must fall back to having a nullable type. Consider adding a "default:" property in the specification file to hide this note.
Implementation
String? object;