使用Boto3，如何在EC2实例列表中获取小于Y的卷？

import boto3

# 配置AWS凭证
session = boto3.Session(
    aws_access_key_id='YOUR_ACCESS_KEY',
    aws_secret_access_key='YOUR_SECRET_KEY',
    region_name='YOUR_REGION'
)

ec2_client = session.client('ec2')

response = ec2_client.describe_instances()
instances = response['Reservations']

for instance in instances:
    instance_id = instance['Instances'][0]['InstanceId']
    response = ec2_client.describe_volumes(Filters=[{'Name': 'attachment.instance-id', 'Values': [instance_id]}])
    volumes = response['Volumes']

Y = 100  # 设置Y的值
filtered_volumes = [volume for volume in volumes if volume['Size'] < Y]

import boto3

# 配置AWS凭证
session = boto3.Session(
    aws_access_key_id='YOUR_ACCESS_KEY',
    aws_secret_access_key='YOUR_SECRET_KEY',
    region_name='YOUR_REGION'
)

# 创建EC2客户端
ec2_client = session.client('ec2')

# 获取EC2实例列表
response = ec2_client.describe_instances()
instances = response['Reservations']

# 遍历实例列表，获取每个实例的卷信息
for instance in instances:
    instance_id = instance['Instances'][0]['InstanceId']
    response = ec2_client.describe_volumes(Filters=[{'Name': 'attachment.instance-id', 'Values': [instance_id]}])
    volumes = response['Volumes']

    # 过滤出小于Y的卷
    Y = 100  # 设置Y的值
    filtered_volumes = [volume for volume in volumes if volume['Size'] < Y]

    # 打印结果
    for volume in filtered_volumes:
        print(f"Instance ID: {instance_id}, Volume ID: {volume['VolumeId']}, Size: {volume['Size']} GB")