toJSON() {
		const res = _.pick(this, [
			"id",
			"nodeID",
			"action.name",
			"event.name",
			"service.name",
			"service.version",
			"service.fullName",
			"options",
			"parentID",
			"caller",
			"level",
			"params",
			"meta",
			//"locals",
			"requestID",
			"tracing",
			"span",
			"needAck",
			"ackID",
			"eventName",
			"eventType",
			"eventGroups",
			"cachedResult"
		]);

		return res;
	}
Convert Context to a printable POJO object.