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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 isready(self):
 """ Used to synchronize the python engine object with the back-end engine. Sends 'isready' and waits for 'readyok.' """

        self.put('isready')
        while True:
            text = self.stdout.readline().strip()
            if text == 'readyok':
                return text