**addLabel** ([FeedReader extension](https://github.com/jangernert/FeedReader/tree/master/data/tt-rss-feedreader-plugin))
Returns a JSON-encoded ID of the added label.
Parameters:
* caption (string) - the caption of the label
jking
added this to the 0.2.0 milestone 7 years ago
addLabel (FeedReader extension)
Returns a JSON-encoded ID of the added label.
Parameters: