After doing some testing, expiry does work for getMulti. Note that the documentation says that the options are in the format of “Object.{string, Object}” for getMulti, but they are actually in the format of “Object”.
// This is correct
cb.getMulti([“doc1”, “doc2”], {expiry: 3600}, function() {});
// This is WRONG
cb.getMulti([“doc1”,“doc2”], {“doc1”: {expiry: 3600}, “doc2”: {expiry: 3600}}, function() {});