docs: def proto_refactor_files(dest_dir, namespace, namespace_path):
      """This method runs the refactoring on all the Protobuf files in the
      Dropsonde repo.
  
      Args:
          dest_dir (str): directory where the Protobuf files lives.
          namespace (str): the desired package name (i.e. "dropsonde.py2")
          namespace_path (str): the desired path corresponding to the package
                                name (i.e. "dropsonde/py2")
      """
      for dn, dns, fns in os.walk(dest_dir):
          for fn in fns:
              fn = os.path.join(dn, fn)
              if fnmatch.fnmatch(fn, '*.proto'):
                  data = proto_refactor(fn, namespace, namespace_path)
                  with open(fn, 'w') as f:
                      f.write(data)