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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 load_data(self, idx):
 """Call method |InputSequences.load_data| of all handled |InputSequences| objects."""

        for subseqs in self:
            if isinstance(subseqs, abctools.InputSequencesABC):
                subseqs.load_data(idx)