How to determine the number of tags in each cluster in Yandex Maps clusters?

Question

JavaScript

Good afternoon! I'm trying to set up YaMap, it will have a fairly large number of objects, but in a certain city there should not be more than 5 tags. How do I inform the user that there are "no places" in this city (i.e. there are already 5 objects in this cluster / region), you need to either change the label style under this condition, or indicate this in balloons.
How to implement it?

Answer 1

cluster.getGeoObjects() will return an array with all the objects in the given cluster.