You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: lost_assignment_without_offset_storage_spec.rb
    path of file: ./repos/karafka/spec/integrations/pro/consumption/transactions
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

# We should be able to use producer
    
  def consume
    return if DT.key?(:done)

    DT[:done] = true

    sleep(0.1) until revoked?

    begin
      transaction do
        produce_async(topic: topic.name, payload: '1')
      end
    rescue StandardError
      exit 1
    end