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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 _execute(self, execute_inputs, execute_outputs, backward_execution=False):
 """Calls the custom execute function of the script.py of the state """

        self._script.build_module()

        outcome_item = self._script.execute(self, execute_inputs, execute_outputs, backward_execution)

        # in the case of backward execution the outcome is not relevant
        if backward_execution:
            return

        # If the state was preempted, the state must be left on the preempted outcome
        if self.preempted:
            return Outcome(-2, "preempted")

        # Outcome id was returned
        if outcome_item in self.outcomes:
            return self.outcomes[outcome_item]

        # Outcome name was returned
        for outcome_id, outcome in self.outcomes.items():
            if outcome.name == outcome_item:
                return self.outcomes[outcome_id]

        logger.error("Returned outcome of {0} not existing: {1}".format(self, outcome_item))
        return Outcome(-1, "aborted")