if (gcsConnectionProperties.requiresAuthentication()) {
            Supplier<Credential> credentialSupplier = getCredentialSupplier(transport, jsonFactory);
            builder.setHttpRequestInitializer(new RetryHttpInitializerWrapper(credentialSupplier));
        }
        if (gcsConnectionProperties.getEndpoint().isPresent()) {
            builder.setRootUrl(gcsConnectionProperties.getEndpoint().get().toString());
        }