code: def add_static_path(self, prefix: str, path: str) -> None:
          
          pattern = prefix
          if not pattern.startswith('/'):
              pattern = '/' + pattern
          if not pattern.endswith('/(.*)'):
              pattern = pattern + '/(.*)'
          self.add_handlers(
              r'.*',  # add static path for all virtual host
              [(pattern, StaticFileHandler, dict(path=path))]
          )
docs: Add path to serve static files.
  
          ``prefix`` is used for url prefix to serve static files and ``path`` is
          a path to the static file directory. ``prefix = '/_static'`` is
          reserved for the server, so do not use it for your app.