docs: def extract_metadata(fileobj):
      '''
      Extract metadata from plugin archive file-like object (e.g., opened file,
      ``StringIO``).
  
      Parameters
      ----------
      fileobj : file-like
          MicroDrop plugin archive file object.
  
      Returns
      -------
      dict
          Metadata dictionary for plugin.
      '''
      tar = tarfile.open(mode="r:gz", fileobj=fileobj)
  
      plugin_path = path(tmp.mkdtemp(prefix='mpm-'))
      try:
          tar.extractall(plugin_path)
  
          return yaml.load(plugin_path.joinpath('properties.yml').bytes())
      finally:
          fileobj.seek(0)
          plugin_path.rmtree()