<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def Next(self):
 """ Advances the iterator forward 1 step. Returns: bool: True if another item exists in the iterator, False otherwise. """

        try:
            self.key, self.value = next(self.current)
        except StopIteration:

            if self.current != self.second:
                self.current = self.second
                return self.Next()

            return False

        return True