def make_key(processid='*', job_id='*'):
    """
    Concatenates a process ID and a job ID into a static key for use in Redis

    :param processid: process identifier, or '*' as wildcard
    :param jobid: job identifier, or '*' as wildcard

    :returns: `str` concatenation like `'process:{processid}:job:{job_id}'`
    """
    return f'process:{processid or "*"}:job:{job_id or "*"}'