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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 categorical__int(self, column_name, output_column_prefix):
 """ Interprets an integer column as a categorical variable. """


        return [_ColumnFunctionTransformation(
            features = [column_name],
            output_column_prefix = output_column_prefix,
            transform_function = lambda col: col.astype(str),
            transform_function_name = "astype(str)")]