in scripts/gd2acl-sync-check.py [0:0]
def get_netacl_id(subnet_id):
    try:
        ec2 = boto3.client('ec2')
        response = ec2.describe_network_acls(
            Filters=[
                {
                    'Name': 'association.subnet-id',
                    'Values': [
                        subnet_id,
                    ]
                }
            ]
        )
        netacls = response['NetworkAcls'][0]['Associations']
        for i in netacls:
            if i['SubnetId'] == subnet_id:
                netaclid = i['NetworkAclId']
        return netaclid
    except Exception as e:
        return []