public FileServiceBuilder serveCompressedFiles(boolean serveCompressedFiles) {
        this.serveCompressedFiles = serveCompressedFiles;
        return this;
    }
Sets whether pre-compressed files should be served. {@link FileService} supports serving files
compressed with gzip, with the extension {@code ".gz"}, and brotli, with the extension {@code ".br"}.
The extension should be appended to the original file. For example, to serve {@code index.js} either
raw, gzip-compressed, or brotli-compressed, there should be three files, {@code index.js},
{@code index.js.gz}, and {@code index.js.br}. By default, this feature is disabled.

<p>Some tools for precompressing resources during a build process include {@code gulp-zopfli} and
{@code gulp-brotli}, which by default create files with the correct extension.
core/src/main/java/com/linecorp/armeria/server/file/FileServiceBuilder.java