def version_is_concrete(version):
    """
    Verifies if the provided version number is of type concrete
    (all the partial number are specified), or if the version
    string contains wildcard values that match an open range
    of version values.

    :param version: String
    :param version: The string containing the version to be verified
    to be of type concrete.
    :rtype: bool
    :return: The result of the version concrete testing.
    """
    is_wildcard = 'x' in version
    return not is_wildcard
