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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 populate_from_seqinfo(self, seqinfo):
 """Populate sequence_ids below this node from a seqinfo file object."""

        for row in csv.DictReader(seqinfo):
            node = self.index.get(row['tax_id'])
            if node:
                node.sequence_ids.add(row['seqname'])