Historian: Historian
In j2scode/nlpStudio: Natural Language Processing Environment

Historian Class that maintains the log history of objectNames and their events.

Historian

`dateFrom`	Character string containing a date in any ISO 8601 format, from which the history log should be returned.
`dateTo`	Character string containing a date in any ISO 8601 format, from which the history log should be returned.
`class`	Character string indicating the class for which log entries should be returned.
`objectName`	Character string indicating the name of the objectName for which log entries should be returned.
`Method`	Character string indicating the method for which log entries should be returned.

An object of class R6ClassGenerator of length 24.

new(): Initializes a singleton objectName, noting the instantiation of the nlpStudio objectName.
addEvent(className, objectName, method, event): Posts the event to history.
searchEvents(dateFrom, dateTo, class, objectName, method): Returns the history of events according to the parameters provided, in a data frame format.
purgeEvents(): Sets events to null.
restoreEvents(): Restores events from the history file.