CallWire
data class CallWire(val commandId: String, val tenantId: String, val ownerId: String? = null, val spaceId: String? = null, val causation: Causation, val operator: Operator? = null, val wait: WaitWire? = null, val facts: Map<String, String> = emptyMap())
The root command of a call on the wire (CallHeader): the call's commandId, the root command's tenantId, ownerId and spaceId, its causation and operator, the wait context a wait that follows the calling saga goes on with, and facts, the root request's facts that propagate (such as {"app_id":"console"}).