Backup your webtask code. Can be used to make sure you have the latest version of your code locally, or used to backup in case at some point webtask.io ceases to function. Considering they very recently started failing to install new npm modules, this could be any point now I fear.
This python script is used to increase the number of replicas in an ES cluster and force those new replicas to be allocated to a new host to enable a filesystem backup of the ES data directory.