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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _merge_cluster(old, new):
 """merge one cluster to another"""

    logger.debug("_merge_cluster: %s to %s" % (old.id, new.id))
    logger.debug("_merge_cluster: add idls %s" % old.loci2seq.keys())
    for idl in old.loci2seq:
        # if idl in new.loci2seq:
        #    new.loci2seq[idl] = list(set(new.loci2seq[idl] + old.loci2seq[idl]))
        # new.loci2seq[idl] = old.loci2seq[idl]
        new.add_id_member(old.loci2seq[idl], idl)
    return new