docs: def is_static(self, filename):
          """Check if a file is a static file (which should be copied, rather
          than compiled using Jinja2).
  
          A file is considered static if it lives in any of the directories
          specified in ``staticpaths``.
  
          :param filename: the name of the file to check
  
          """
          if self.staticpaths is None:
              # We're not using static file support
              return False
  
          for path in self.staticpaths:
              if filename.startswith(path):
                  return True
          return False