# File lib/database_cleaner/active_record/transaction.rb, line 16
    def clean
      connection_klass.connection.rollback_db_transaction

      if connection_klass.connection.respond_to?(:decrement_open_transactions)
        connection_klass.connection.decrement_open_transactions
      else
        connection_klass.__send__(:decrement_open_transactions)
      end
    end