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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 _load(self):
 """Initiate new generator and load first pair"""

        self.is_running = True
        self.pair_generator = self._iterator(self.plugins,
                                             self.context)
        self.current_pair = next(self.pair_generator, (None, None))
        self.current_error = None
        self.is_running = False