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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 cdhit_from_seqs(seqs, moltype, params=None):
 """Returns the CD-HIT results given seqs seqs : dict like collection of sequences moltype : cogent.core.moltype object params : cd-hit parameters NOTE: This method will call CD_HIT if moltype is PROTIEN, CD_HIT_EST if moltype is RNA/DNA, and raise if any other moltype is passed. """

    # keys are not remapped. Tested against seq_ids of 100char length
    seqs = SequenceCollection(seqs, MolType=moltype)

    # setup params and make sure the output argument is set
    if params is None:
        params = {}
    if '-o' not in params:
        _, params['-o'] = mkstemp()

    # call the correct version of cd-hit base on moltype
    working_dir = mkdtemp()
    if moltype is PROTEIN:
        app = CD_HIT(WorkingDir=working_dir, params=params)
    elif moltype is RNA:
        app = CD_HIT_EST(WorkingDir=working_dir, params=params)
    elif moltype is DNA:
        app = CD_HIT_EST(WorkingDir=working_dir, params=params)
    else:
        raise ValueError, "Moltype must be either PROTEIN, RNA, or DNA"

    # grab result
    res = app(seqs.toFasta())
    new_seqs = dict(parse_fasta(res['FASTA']))

    # perform cleanup
    res.cleanUp()
    shutil.rmtree(working_dir)
    remove(params['-o'] + '.bak.clstr')

    return SequenceCollection(new_seqs, MolType=moltype)