public AndroidAuthenticationConfig provide() {
    Context context = Context.getApplicationContext();
    if (context == null) {
      return AndroidAuthenticationConfig.EMPTY;
    }

    return new AndroidAuthenticationConfig(
        context.getPackageName(), CertificateHelper.getSigningCertificateSha1Fingerprint(context));
  }
@return the environment specific {@link AndroidAuthenticationConfig}
src/main/java/com/google/maps/android/AndroidAuthenticationConfigProvider.java