connected property
Connected is whether integrations holds a connection for (this org, this transport) — whether someone finished its connect flow. False leaves Account and AccountLabel empty, and a send is then refused downstream rather than here: by the transport's own binding check (403 for a Telegram chat this org has not bound, 409 for a Discord or Teams room with no inbound-learned route), or on Slack by the absent per-org bot token, which surfaces as 502.
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
bool? connected;