code: def cli(sample, dry_run, limit, no_limit,
          database_filename, template_filename, config_filename):
      
      # pylint: disable=too-many-arguments
      mailmerge.api.main(
          sample=sample,
          dry_run=dry_run,
          limit=limit,
          no_limit=no_limit,
          database_filename=database_filename,
          template_filename=template_filename,
          config_filename=config_filename,
      )
docs: Command line interface.