code: def start_reporter(redis_address,
                     stdout_file=None,
                     stderr_file=None,
                     redis_password=None):
      
      reporter_filepath = os.path.join(
          os.path.dirname(os.path.abspath(__file__)), "reporter.py")
      command = [
          sys.executable, "-u", reporter_filepath,
          "--redis-address={}".format(redis_address)
      ]
      if redis_password:
          command += ["--redis-password", redis_password]
  
      try:
          import psutil  # noqa: F401
      except ImportError:
          logger.warning("Failed to start the reporter. The reporter requires "
                         "'pip install psutil'.")
          return None
  
      process_info = start_ray_process(
          command,
          ray_constants.PROCESS_TYPE_REPORTER,
          stdout_file=stdout_file,
          stderr_file=stderr_file)
      return process_info
docs: Start a reporter process.
  
      Args:
          redis_address (str): The address of the Redis instance.
          stdout_file: A file handle opened for writing to redirect stdout to. If
              no redirection should happen, then this should be None.
          stderr_file: A file handle opened for writing to redirect stderr to. If
              no redirection should happen, then this should be None.
          redis_password (str): The password of the redis server.
  
      Returns:
          ProcessInfo for the process that was started.