def clear_request(name=None):
    notify_path = os.path.join(__opts__['cachedir'], 'req_state.p')
    serial = salt.payload.Serial(__opts__)
    if not os.path.isfile(notify_path):
        return True
    if not name:
        try:
            os.remove(notify_path)
        except (IOError, OSError):
            pass
    else:
        req = check_request()
        if name in req:
            req.pop(name)
        else:
            return False
        cumask = os.umask(0o77)
        try:
            if salt.utils.is_windows():
                # Make sure cache file isn't read-only
                __salt__['cmd.run']('attrib -R "{0}"'.format(notify_path))
            with salt.utils.fopen(notify_path, 'w+b') as fp_:
                serial.dump(req, fp_)
        except (IOError, OSError):
            msg = 'Unable to write state request file {0}. Check permission.'
            log.error(msg.format(notify_path))
        os.umask(cumask)
    return True
.. versionadded:: 2015.5.0
dataset/ETHPy150Open saltstack/salt/salt/modules/state.py/clear_request