def METHOD_NAME(conn: Connection, start: dt.datetime,
               event: str, batchsize: Optional[int] = None) -> None:
    """ Write a new status line to the `import_osmosis_log` table.
    """
    with conn.cursor() as cur:
        cur.execute("""INSERT INTO import_osmosis_log
                       (batchend, batchseq, batchsize, starttime, endtime, event)
                       SELECT lastimportdate, sequence_id, %s, %s, now(), %s FROM import_status""",
                    (batchsize, start, event))
    conn.commit()