如何使用boto3查询亚马逊网络服务，以确定IMDSv2是否在EC2实例中强制执行

[default]
aws_access_key_id = YOUR_ACCESS_KEY
aws_secret_access_key = YOUR_SECRET_KEY

import boto3

def check_imdsv2_enforcement():
    ec2_client = boto3.client('ec2')
    response = ec2_client.describe_instances()
    
    for reservation in response['Reservations']:
        for instance in reservation['Instances']:
            instance_id = instance['InstanceId']
            metadata_options = instance.get('MetadataOptions', {})
            http_tokens = metadata_options.get('HttpTokens')
            
            if http_tokens == 'required':
                print(f"IMDSv2 is enforced on EC2 instance {instance_id}")
            else:
                print(f"IMDSv2 is not enforced on EC2 instance {instance_id}")

check_imdsv2_enforcement()