code: def ParseOptions(cls, options, output_module):
      
      if not isinstance(output_module, shared_4n6time.Shared4n6TimeOutputModule):
        raise errors.BadConfigObject(
            'Output module is not an instance of Shared4n6TimeOutputModule')
  
      append = getattr(options, 'append', cls._DEFAULT_APPEND)
      evidence = cls._ParseStringOption(
          options, 'evidence', default_value=cls._DEFAULT_EVIDENCE)
      fields = cls._ParseStringOption(
          options, 'fields', default_value=cls._DEFAULT_FIELDS)
      additional_fields = cls._ParseStringOption(
          options, 'additional_fields')
  
      if additional_fields:
        fields = '{0:s},{1:s}'.format(fields, additional_fields)
  
      output_module.SetAppendMode(append)
      output_module.SetEvidence(evidence)
      output_module.SetFields([
          field_name.strip() for field_name in fields.split(',')])
docs: Parses and validates options.
  
      Args:
        options (argparse.Namespace): parser options.
        output_module (OutputModule): output module to configure.
  
      Raises:
        BadConfigObject: when the output module object is of the wrong type.