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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 sample(self):
        '''Returns the stream's rows used as sample.

        These sample rows are used internally to infer characteristics of the
        source file (e.g. encoding, headers, ...).
        '''
        sample = []
        iterator = iter(self.__sample_extended_rows)
        iterator = self.__apply_processors(iterator)
        for row_number, headers, row in iterator:
            sample.append(row)
        return sample