code: def close(self):
      with self.lock:
          if not self.output_file.closed:
              self.output_file.close()
  
file_path: PARL/parl/utils/csv_logger.py
imports: import csv
  import threading
label_desc: Use image node_id 4 for calling the CSVLogger obj's underlying member method code with example usage: obj.close() without return types