||The event that the firing is in response to.
||Returns the command input that has just changed.
||Returns the collection of command inputs that are associated with the command this event is being fired for.
||Indicates if this object is still valid, i.e. hasn't been deleted or some other action done to invalidate the reference.
||This property is supported by all objects in the API and returns a string that contains the full name (namespace::objecttype) describing the type of the object.
It's often useful to use this in combination with the classType method to see if an object is a certain type. For example: if obj.objectType == adsk.core.Point3D.classType():