Invercargill/src/lib/Interfaces/AddressableCollection.vala

namespace Invercargill {

    [GenericAccessors]
    public interface AddressableCollection<T> : Addressable<T>, Collection<T> {

        public abstract void remove_at(uint index) throws IndexError;
        public abstract void insert_at(uint index, T item) throws IndexError;

    }

}