code: private static void buildReadRowSettings(Builder builder, BigtableOptions options) {
      RetrySettings retrySettings =
          buildIdempotentRetrySettings(builder.readRowSettings().getRetrySettings(), options);
  
      builder.readRowSettings()
          .setRetrySettings(retrySettings)
          .setRetryableCodes(buildRetryCodes(options.getRetryOptions()));
    }
docs: To build default Retry settings for Point Read.