You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: standard.rs
    path of file: ./repos/Ambient/shared_crates/element/tests
    
    the code of the file until where you have to start completion: use ambient_element::{use_state, Element, ElementComponent, ElementComponentExt, Hooks, Memo};
use ambient_guest_bridge::ecs::query;
mod commo
    
fn memo() {
    #[derive(Debug, Clone, PartialEq, Eq)]
    pub struct Inner {
        state: u32,
    }
    impl ElementComponent for Inner {
        fn render(self: Box<Self>, hooks: &mut Hooks) -> Element {
            *hooks.world.resource_mut(n_renders()) += 1;
            Element::new()
        }
    }

    let mut world = initialize();
    let mut tree = Memo(Inner { state: 3 }).el().spawn_tree(&mut world);
    assert_eq!(1, *world.resource(n_renders()));

    for _ in 0..5 {
        tree.migrate_root(&mut world, Memo(Inner { state: 3 }).el());
        tree.update(&mut world);
        assert_eq!(1, *world.resource(n_renders()));
    }

    for _ in 0..5 {
        tree.migrate_root(&mut world, Memo(Inner { state: 6 }).el());
        tree.update(&mut world);
        assert_eq!(2, *world.resource(n_renders()));
    }
}