Fires whenever a control segment is read that marks the end of a transaction.
The 'callback' is called when the 'EndTransaction' event is emited.
The argument 'e' has the following properties:
e.tag e.controlNumber e.count e.fullSegment
The EndTransaction event will fire when a control segment marking the end of a transaction is read. The Tag parameter contains the tag of the segment, such as SE. ControlNumber contains the control number associated with the segment, and links this event with the corresponding StartTransaction event. Count contains the value of the count element included in the closing segment, which identifies the number of segments in a transaction set.