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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 memory_usage(self):
 """ Get the combined memory usage of the field data and field values. """

        data = super(Field, self).memory_usage()
        values = 0
        for value in self.field_values:
            values += value.memory_usage()
        data['field_values'] = values
        return data