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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 discrete(self):
 """ Set sequence to be discrete. :rtype: Column :Example: """

        field_name = self.name
        new_df = copy_df(self)
        new_df._perform_operation(op.FieldContinuityOperation({field_name: False}))
        return new_df