code: def _add_cli_param(params, key, value):
      '''
      Adds key and value as a command line parameter to params.
      '''
      if value is not None:
          params.append('--{0}={1}'.format(key, value)f _add_cli_param(params, key, value):
      '''
      Adds key and value as a command line parameter to params.
      '''
      if value is not None:
          params.append('--{0}={1}'.format(key, value))
docs: Adds key and value as a command line parameter to params.