def _get_execution(self, execution_id):
        execution = self.datastore.get_execution(execution_id)
        if not execution:
            self.set_status(400)
            return {'error': 'Execution not found: %s' % execution_id}
        return execution
Returns a dictionary of a job execution info.
dataset/ETHPy150Open Nextdoor/ndscheduler/ndscheduler/server/handlers/executions.py/Handler._get_execution