old_contents: from pikos.recorders.list_recorder import ListRecorder
  from pikos.recorders.text_file_recorder import TextFileRecorder
  from pikos.recorders.csv_file_recorder import CSVFileRecorder
  from pikos.recorders.csv_recorder import CSVRecorder
  from pikos.recorders.text_stream_recorder import TextStreamRecorder
  from pikos.recorders.zeromq_recorder import ZeroMQRecorder
  
new_contents: from pikos.recorders.list_recorder import ListRecorder
  from pikos.recorders.text_file_recorder import TextFileRecorder
  from pikos.recorders.csv_file_recorder import CSVFileRecorder
  from pikos.recorders.csv_recorder import CSVRecorder
  from pikos.recorders.text_stream_recorder import TextStreamRecorder
  
subject: remove zero mq recorder from api since it is optional