source_ property
Source is the plane this row came from: "agent" (a linked run-target), "byo" (a worker or cluster the org dialed in) or "visor" (a machine Hanzo provisioned). It is half the row's identity, and it says which face owns the unit — /v1/agents/targets, /v1/visor/fleet/workers, /v1/visor/machines.
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? source_;