Function remember_with_key 

pub fn remember_with_key<K, F, T>(key: K, init: F) -> State<T>
where
    K: Hash,
    F: FnOnce() -> T,
    T: Send + Sync + 'static,

Initializes state by an explicit key within the current component build.

Use stable business keys for reordered collections. The initializer runs only when the slot is first used; see State for access and lifetime rules.