code: public void file(File file) {
          try {
              contentLength(file.length());
              file(file.getName(), new FileInputStream(file));
          } catch (FileNotFoundException e) {
              throw new PippoRuntimeException(e);
          }
      }
docs: Writes the specified file directly to the response.
  <p>This method commits the response.</p>
  
  @param file