def METHOD_NAME(self):
    db_node = self._sstable_utils.db_node
    self._wait_until_user_table_exists(db_node=db_node, table_name=self._sstable_utils.ks_cf)
    with TombstoneGcVerificationEvent(node=db_node.name, ks_cf=self._sstable_utils.ks_cf, message="") as tombstone_event:
        if self.termination_event.is_set():
            return
        try:
            self.tombstone_gc_verification()
            tombstone_event.message = "Tombstone GC verification ended successfully"
        except Exception as exc:  # pylint: disable=broad-except
            msg = str(exc)
            msg = f"{msg} while running Nemesis: {db_node.running_nemesis}" if db_node.running_nemesis else msg
            tombstone_event.message = msg
            if db_node.running_nemesis or any(s in msg.lower() for s in ERROR_SUBSTRINGS):
                tombstone_event.severity = Severity.WARNING
            else:
                tombstone_event.severity = Severity.ERROR