def gather_bootstrap_script(bootstrap=None):
    if not HAS_CLOUD:
        return False, 'config.gather_bootstrap_script is unavailable'
    ret = salt.utils.cloud.update_bootstrap(__opts__, url=bootstrap)
    if 'Success' in ret and len(ret['Success']['Files updated']) > 0:
        return ret['Success']['Files updated'][0]
Download the salt-bootstrap script, and return its location
dataset/ETHPy150Open saltstack/salt/salt/modules/config.py/gather_bootstrap_script