declare type Listener<S> = (s: S) => void;
declare class Truth<State> {
    private readonly _listeners;
    private _state;
    constructor(initialState: State);
    addChangeListener(fn: Listener<State>): void;
    removeChangeListener(fn: Listener<State>): void;
    private _notify;
    update: <TProp>(deepSelector: (state: State) => TProp, setter: (oldVal: TProp) => TProp) => State;
    replace: (newState: State) => State;
    getState: () => State;
}
export { Truth, };
//# sourceMappingURL=truth.d.ts.map