6 files declare their use of TypeUnsupportedException in Purge 8.3

CacheTagsQueuer.php in modules/purge_queuer_coretags/src/CacheTagsQueuer.php

InvalidateCommand.php in modules/purge_drush/src/Commands/InvalidateCommand.php

InvalidationsService.php in src/Plugin/Purge/Invalidation/InvalidationsService.php

PluginTestBase.php in tests/src/Kernel/Invalidation/PluginTestBase.php

PurgeBlockForm.php in modules/purge_ui/src/Form/PurgeBlockForm.php

QueueCommands.php in modules/purge_drush/src/Commands/QueueCommands.php