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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 flowtable(self):
 """ get a flat flow table globally """

        ftable = dict()
        for table in self.flow_table:
            for k, v in table.items():
                if k not in ftable:
                    ftable[k] = set(v)
                else:
                    [ftable[k].add(i) for i in v]
        # convert set to list
        for k in ftable:
            ftable[k] = list(ftable[k])
        return ftable