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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 get_sstable_data_files(self, ks, table):
 """ Read sstable data files by using sstableutil, so we ignore temporary files """

        p = self.get_sstable_data_files_process(ks=ks, table=table)

        out, _, _ = handle_external_tool_process(p, ["sstableutil", '--type', 'final', ks, table])

        return sorted(filter(lambda s: s.endswith('-Data.db'), out.splitlines()))