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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 add2node(self, othereplus, node):
 """add the node here with the node from othereplus this will potentially have duplicates"""

        node = node.upper()
        self.dt[node.upper()] = self.dt[node.upper()] + \
            othereplus.dt[node.upper()]