human
Complete the below
def _auth(profile=None, api_version=2, **connection_args):

    ''''Set up glance credentials, returns
    `glanceclient.client.Client`. Optional parameter
    "api_version" defaults to 2.
    Only intended to be used within glance-enabled modules'
    '''
 What is a the Python program you requested?
assistant
#Here is the Python program you requested.
    if profile:
        prefix = (profile + ':keystone.')
    else:
        prefix = 'keystone.'
    def get(key, default=None):
        '\n                                Checks    connection_args,    then    salt-minion    config,\n                                falls    back    to    specified    default    value.\n                                '
        return connection_args.get(('connection_' + key), __salt__['config.get']((prefix + key), default))
    user = get('user', 'admin')
    password = get('password', None)
    tenant = get('tenant', 'admin')
    tenant_id = get('tenant_id')
    auth_url = get('auth_url', 'http://127.0.0.1:35357/v2.0')
    insecure = get('insecure', False)
    admin_token = get('token')
    region = get('region')
    ks_endpoint = get('endpoint', 'http://127.0.0.1:9292/')
    g_endpoint_url = __salt__['keystone.endpoint_get']('glance', profile)
    g_endpoint_url = re.sub('/v2', '', g_endpoint_url['internalurl'])
    if (admin_token and (api_version != 1) and (not password)):
        raise SaltInvocationError(('Only    can    use    keystone    admin    token    ' + 'with    Glance    API    v1'))
    elif password:
        kwargs = {'username': user, 'password': password, 'tenant_id': tenant_id, 'auth_url': auth_url, 'endpoint_url': g_endpoint_url, 'region_name': region, 'tenant_name': tenant}
        if insecure:
            kwargs['insecure'] = True
    elif ((api_version == 1) and admin_token):
        kwargs = {'token': admin_token, 'auth_url': auth_url, 'endpoint_url': g_endpoint_url}
    else:
        raise SaltInvocationError('No    credentials    to    authenticate    with.')
    if HAS_KEYSTONE:
        log.debug(('Calling    keystoneclient.v2_0.client.Client(' + '{0},    **{1})'.format(ks_endpoint, kwargs)))
        keystone = kstone.Client(**kwargs)
        kwargs['token'] = keystone.get_token(keystone.session)
        kwargs.pop('password')
        log.debug(('Calling    glanceclient.client.Client(' + '{0},    {1},    **{2})'.format(api_version, g_endpoint_url,...