def configuration_fetch(file_name, config_destination, should_warn=True):
    remote_file_path = os.path.join(constants.REMOTE_CONF_DIR, file_name)
    if not files.exists(remote_file_path):
        if should_warn:
            warn("No configuration file found for %s at %s"
                 + (env.host, remote_file_path))
        return None
    else:
        get(remote_file_path, config_destination)
        return remote_file_path
dataset/ETHPy150Open prestodb/presto-admin/prestoadmin/configure_cmds.py/configuration_fetch/operator `%` -> `+`