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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(self, ladderName):
 """retrieve the ladder settings from saved disk file"""

        self.name = ladderName # preset value to load self.filename
        with open(self.filename, "rb") as f:
            data = f.read()
            self.__dict__.update( json.loads(data) )