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Using the `process_csv` function from the previous exercise, we'll convert its functionality into a class named `CSVProcessor`. Now it will 💵 have a constructor to set the input and output file paths, and the processing itself will be implemented as the 💵 method `process` in this class.

With this new class, the CSV processing can be modularized and reused in other parts of 💵 your applications, making the code more organized.

self.input_file = input_file

# Example usage:

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