@staticmethod
def copy_uri_options(hosts, mongodb_uri):
    """Returns a MongoDB URI to hosts with the options from mongodb_uri.
        """
    if '?' in mongodb_uri:
        options = mongodb_uri.split('?', 1)[1]
    else:
        options = None
    uri = 'mongodb://' + hosts
    if options:
        uri += '/?' + options
    return uri
