Static possibleFields
possibleFields: string[] = ["sessionId","sessionName","clientDescription","serverUri","endpointUrl","localeIds","actualSessionTimeout","maxResponseMessageSize","clientConnectionTime","clientLastContactTime","currentSubscriptionsCount","currentMonitoredItemsCount","currentPublishRequestsInQueue","totalRequestCount","unauthorizedRequestCount","readCount","historyReadCount","writeCount","historyUpdateCount","callCount","createMonitoredItemsCount","modifyMonitoredItemsCount","setMonitoringModeCount","setTriggeringCount","deleteMonitoredItemsCount","createSubscriptionCount","modifySubscriptionCount","setPublishingModeCount","publishCount","republishCount","transferSubscriptionsCount","deleteSubscriptionsCount","addNodesCount","addReferencesCount","deleteNodesCount","deleteReferencesCount","browseCount","browseNextCount","translateBrowsePathsToNodeIdsCount","queryFirstCount","queryNextCount","registerNodesCount","unregisterNodesCount"]