Variables
_enablePropertyHistory
_enablePropertyHistory: "_enablePropertyHistory" = "_enablePropertyHistory"
_followingVersion
_followingVersion: "_followingVersion" = "_followingVersion"
_onceDisablePropertyHistory
_onceDisablePropertyHistory: "_onceDisablePropertyHistory" = "_onceDisablePropertyHistory"
_previousVersion
_previousVersion: "_previousVersion" = "_previousVersion"
_propertyHistory
_propertyHistory: "_propertyHistory" = "_propertyHistory"
cleanHistory
cleanHistory: "cleanHistory" = "cleanHistory"
redo
redo: "redo" = "redo"
requiredMetadataKey
requiredMetadataKey: any = Symbol('required')
undo
undo: "undo" = "undo"