code: def __writeLine(self, *values):
      line = ",".join([str(value) for value in values])
      self.__file.write(line)
      self.__file.write(os.linesep)
  
file_path: pyalgotrade/pyalgotrade/tools/resample.py
imports: import os
  from pyalgotrade import dispatcher
  from pyalgotrade.dataseries import resampled
label_desc: Use image node_id 2 for calling the CSVFileWriter obj's underlying member method code with example usage: obj.__writeLine() without return types