pubsubclient/_posts/2000-04-02-unsubscribe.md

tag	type	name	params	returns
api	function	unsubscribe	name description type topic the topic to unsubscribe from const char[]	type values boolean value description false sending the unsubscribe failed, either connection lost or message too large value description true sending the unsubscribe succeeded

Unsubscribes from the specified topic.