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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 run_muse_perchrom(job, tumor_bam, normal_bam, univ_options, muse_options, chrom):
 """ Run MuSE call on a single chromosome in the input bams. :param dict tumor_bam: Dict of bam and bai for tumor DNA-Seq :param dict normal_bam: Dict of bam and bai for normal DNA-Seq :param dict univ_options: Dict of universal options used by almost all tools :param dict muse_options: Options specific to MuSE :param str chrom: Chromosome to process :return: fsID for the chromsome vcf :rtype: toil.fileStore.FileID """

    work_dir = os.getcwd()
    input_files = {
        'tumor.bam': tumor_bam['tumor_dna_fix_pg_sorted.bam'],
        'tumor.bam.bai': tumor_bam['tumor_dna_fix_pg_sorted.bam.bai'],
        'normal.bam': normal_bam['normal_dna_fix_pg_sorted.bam'],
        'normal.bam.bai': normal_bam['normal_dna_fix_pg_sorted.bam.bai'],
        'genome.fa.tar.gz': muse_options['genome_fasta'],
        'genome.fa.fai.tar.gz': muse_options['genome_fai']}
    input_files = get_files_from_filestore(job, input_files, work_dir, docker=False)

    for key in ('genome.fa', 'genome.fa.fai'):
        input_files[key] = untargz(input_files[key + '.tar.gz'], work_dir)
    input_files = {key: docker_path(path) for key, path in input_files.items()}

    output_prefix = os.path.join(work_dir, chrom)

    parameters = ['call',
                  '-f', input_files['genome.fa'],
                  '-r', chrom,
                  '-O', docker_path(output_prefix),
                  input_files['tumor.bam'],
                  input_files['normal.bam']]
    docker_call(tool='muse', tool_parameters=parameters, work_dir=work_dir,
                dockerhub=univ_options['dockerhub'], tool_version=muse_options['version'])
    outfile = job.fileStore.writeGlobalFile(''.join([output_prefix, '.MuSE.txt']))
    job.fileStore.logToMaster('Ran MuSE on %s:%s successfully' % (univ_options['patient'], chrom))
    return outfile