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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 compareBIM(args):
 """Compare two BIM file. :param args: the options. :type args: argparse.Namespace Creates a *Dummy* object to mimic an :py:class:`argparse.Namespace` class containing the options for the :py:mod:`pyGenClean.PlinkUtils.compare_bim` module. """

    # Creating the CompareBIM options
    class Dummy(object):
        pass
    compareBIM_args = Dummy()
    compareBIM_args.before = args.bfile + ".bim"
    compareBIM_args.after = args.out + ".bim"
    compareBIM_args.out = args.out + ".removed_snps"

    try:
        # Checking the arguments
        CompareBIM.checkArgs(compareBIM_args)

        # Reading the BIM files
        beforeBIM = CompareBIM.readBIM(compareBIM_args.before)
        afterBIM = CompareBIM.readBIM(compareBIM_args.after)

        # Comparing the BIM files
        CompareBIM.compareSNPs(beforeBIM, afterBIM, compareBIM_args.out)
    except CompareBIM.ProgramError as e:
        raise ProgramError("CompareBIM: " + e.message)