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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 rmsd_eval(rmsd_params):
 """Builds a model and runs profit against a reference model. Parameters rmsd_params Returns ------- rmsd: float rmsd against reference model as calculated by profit. """

    specification, sequence, parsed_ind, reference_pdb = rmsd_params
    model = specification(*parsed_ind)
    model.pack_new_sequences(sequence)
    ca, bb, aa = run_profit(model.pdb, reference_pdb, path1=False, path2=False)
    return bb