Should it not work if I write as follow: print(collider.GetType()) from that I should expect to have the type of collider that is tested?
First off, you probably want:
instead, since `GetType()` returns a `Type` not a `string`. Secondly, yes, this should return one of the following collider types:
BoxCollider, SphereCollider, CapsuleCollider, or MeshCollider
It should be printed exactly like that ("BoxCollider", not "Box").