Deletes a subscription. If the subscription requires authentication for
deletion, only the owner of the subscription or the topic's owner can
unsubscribe, and an AWS signature is required. If the
unsubscribe call does not require authentication
and the requester is not the subscription owner, a final cancellation
message is delivered to the endpoint, so that the endpoint owner can
easily resubscribe to the topic if the unsubscribe
request was unintended.
This action is throttled at 100 transactions per second (TPS).
sns_unsubscribe(SubscriptionArn)[required] The ARN of the subscription to be deleted.
An empty list.
svc$unsubscribe( SubscriptionArn = "string" )