code: def unversioned(cls, coord):
      
      coord = cls.create(coord)
      if coord.rev is None:
        return coord
      return M2Coordinate(org=coord.org, name=coord.name, classifier=coord.classifier, ext=coord.ext)
docs: The coordinate without the version.
  
      :param M2Coordinate coord: an M2Coordinate or JarDependency.
      :return: the coordinate without the version.
      :rtype: M2Coordinate