message: Remove  bounds on Query keys and values
diff: @@ -70,8 +70,8 @@ pub trait QueryFunction<DB: Database>: Query<DB> {
  }
  pub trait Query<DB: Database>: Debug + Default + Sized + 'static {
  - type Key: Clone + Debug + Hash + Eq + Send;
  - type Value: Clone + Debug + Hash + Eq + Send;
  + type Key: Clone + Debug + Hash + Eq;
  + type Value: Clone + Debug + Hash + Eq;
  type Storage: QueryStorageOps<DB, Self> + Send + Sync;
  }
  