def start_instances(self):
    instance_ids = instance_ids_from_querystring(self.querystring)
    if self.is_not_dryrun('StartInstance'):
        instances = self.ec2_backend.start_instances(instance_ids)
        template = self.response_template(EC2_START_INSTANCES)
        return template.render(instances=instances)
def start_instances(self):
    instance_ids = instance_ids_from_querystring(self.querystring)
    if self.is_not_dryrun('StartInstance'):
        instances = self.ec2_backend.start_instances(instance_ids)
        template = self.response_template(EC2_START_INSTANCES)
        return template.render(instances=instances)