Models an initiator in Corda, can be a user, a service, etc.
Authentication / Authorisation Service ID.
Models the information needed to trace an invocation in Corda. Includes initiating actor, origin, trace information, and optional external trace information to correlate clients' IDs.
Represents the source of an action such as a flow start, an RPC, a shell command etc.
Contextual tracing information, including invocation and session id.