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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 read_tsv(cls, path, encoding='utf-8'):
 """Read a gene set database from a tab-delimited text file. Parameters path: str The path name of the the file. encoding: str The encoding of the text file. Returns ------- None """

        gene_sets = []
        n = 0
        with open(path, 'rb') as fh:
            reader = csv.reader(fh, dialect='excel-tab', encoding=encoding)
            for l in reader:
                n += 1
                gs = GeneSet.from_list(l)
                gene_sets.append(gs)
        logger.debug('Read %d gene sets.', n)
        logger.debug('Size of gene set list: %d', len(gene_sets))
        return cls(gene_sets)