8 files declare their use of StructureSyncHelper in Structure Sync 8

BlocksController.php in src/Controller/BlocksController.php

BlocksSyncForm.php in src/Form/BlocksSyncForm.php

MenuLinksController.php in src/Controller/MenuLinksController.php

MenuSyncForm.php in src/Form/MenuSyncForm.php

StructureSyncCommands.php in src/Commands/StructureSyncCommands.php

structure_sync.drush.inc in ./structure_sync.drush.inc

Drush commands for syncing structure content.

TaxonomiesController.php in src/Controller/TaxonomiesController.php

TaxonomiesSyncForm.php in src/Form/TaxonomiesSyncForm.php