docs: private AuthRetryParameters redirectToS3External() {
          AWSS3V4Signer v4Signer = buildSigV4Signer(Regions.US_EAST_1.getName());
          try {
              URI bucketEndpoint = new URI(
                      String.format("https://%s.s3-external-1.amazonaws.com", endpointResolver.getBucketName()));
              return buildRetryParams(v4Signer, bucketEndpoint);
          } catch (URISyntaxException e) {
              throw new SdkClientException(
                      "Failed to re-send the request to \"s3-external-1.amazonaws.com\". " + V4_REGION_WARNING, e);
          }
      }