Function createStore

Returns {
    clearOnChange: <T>(callback: (piece: T) => void) => void;
    getInitialState: () => State;
    getState: () => State;
    onChange: <T>(
        selector: (state: State) => T,
        callback: (piece: T) => void,
    ) => void;
    updateState: (newState: Partial<State>) => void;
}