/**
 * This is a test helper function that will layer in default client values with
 * resolved credentials
 *
 * Credentials will be resolved in the following order:
 * 1. Check environment variables, SANDBOX_USERNAME and SANDBOX_PASSWORD. These
 *    are primarily used in travis-ci environment but you can set these locally as well
 * 2. Check for local creds file, 'local_creds.json'. This file can be used for local
 *    development. The file will be gitignored and NOT checked into source.
 * 3. If the first two are not present, fall back to mock creds. This will work for the
 *    unit tests via Nock but the integration tests will not pass without valid creds.
 */
export default function _default(): any;