It can be deployed normally on AWS

![image](https://user-images.githubusercontent.com/38454210/78279329-f1528180-7549-11ea-8aec-ba9620a16609.png)

![image](https://user-images.githubusercontent.com/38454210/78279477-25c63d80-754a-11ea-92bc-313e7950424c.png)


if topic_arn not in SNS_SUBSCRIPTIONS:
        SNS_SUBSCRIPTIONS[topic_arn] = []
def do_delete_topic(topic_arn):
    SNS_SUBSCRIPTIONS.pop(topic_arn, None)
def do_confirm_subscription(topic_arn, token):
    for k, v in SUBSCRIPTION_STATUS.items():
        if v['Token'] == token and v['TopicArn'] == topic_arn:
            v['Status'] = 'Subscribed'
def do_subscribe(topic_arn, endpoint, protocol, subscription_arn, attributes, filter_policy=None):
    
    
    for existing_topic_subscription in SNS_SUBSCRIPTIONS.get(topic_arn, []):
        if existing_topic_subscription.get('Endpoint') == endpoint:
            return
    subscription = {