def put_files(self, files, content_type=None, compress=None, cache_control=None, block=True):
    """
    Put lots of files at once and get a nice progress bar. It'll also wait
    for the upload to complete, just like get_files.

    Required:
      files: [ (filepath, content), .... ]
    """
    for path, content in tqdm(files, disable=(not self.progress), desc="Uploading"):
      content = compression.compress(content, method=compress)
      self._interface.put_file(path, content, content_type, compress, cache_control=cache_control)
    return self
Put lots of files at once and get a nice progress bar. It'll also wait
    for the upload to complete, just like get_files.

    Required:
      files: [ (filepath, content), .... ]