||This is a temporary structure that's passed to a synchronizer and tells what's been changed
in structure and in JIRA or in the external system.
StructureSynchronizer is a pluggable Structure extension that
allows you to sync structure with any other aspect of issues, be it links, subtasks or anything
StructureSyncManager manages the whole synchronization engine.
||This class provides
StructureSynchronizer with additional methods to send feedback to structure
||This interface is used by the synchronizers to store undo information
in the synchronization undo log.
SyncInstance represents an installed and configured instance of a synchronizer.