diff --git a/src/server/user.rs b/src/server/user.rs
index 5698817..6146be8 100644
--- a/src/server/user.rs
+++ b/src/server/user.rs
@@ -58,6 +58,21 @@ pub struct Group
     inherits: Option<Vec<GroupID>>,
 }
 
+impl Group
+{
+    /*
+//TODO: Create bespoke iterator type for this, it's not possible here.
+    pub fn inherits<'b, 'a>(&'b self, space: &'a Userspace) -> impl Iterator<Item = GroupID> +'a
+	where 'b: 'a
+    {
+	match &self.inherits {
+	    Some(inherits) => inherits.iter()
+		.filter_map(|group| group.find_in_space(space).map(|parent| parent.inherits(space))).flatten(),
+	    None => todo!()
+	}
+    }*/
+}
+
 pub trait AsEntityId
 {
     fn entity_id(&self) -> Cow<'_, EntityID>;