CoreParticipant
constructor()
constructor(subject: String, isLocal: Boolean = AuthorizationService.localSubject() == subject || subject == SUBJECT_ID_PLACEHOLDER, app: String? = Participant.APP, role: String? = Participant.ROLE, context: String? = Participant.CONTEXT, displayName: String = Participant.DISPLAY_NAME, clientMenu: ParticipantClientMenu? = null)