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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 __refillOTPKs(self):
 """ If the amount of available OTPKs fell under the minimum, refills the OTPKs up to the maximum limit again. """


        remainingOTPKs = len(self.__otpks)

        if remainingOTPKs < self.__min_num_otpks:
            self.__generateOTPKs(self.__max_num_otpks - remainingOTPKs)