import { CB, DynamicValue, Maybe } from "vest-utils";

//#region src/vast.d.ts
declare function createState(onStateChange?: (...args: unknown[]) => unknown): CreateStateReturn;
type StateInput<S> = DynamicValue<S, [prevState?: S]>;
type SetStateInput<S> = DynamicValue<S, [prevState: S]>;
type State = CreateStateReturn;
type StateHandlerReturn<S> = [S, (nextState: SetStateInput<S>) => void];
type UseState<S> = CB<StateHandlerReturn<S>>;
type CreateStateReturn = {
  reset: () => void;
  registerStateKey: <S>(initialState?: Maybe<StateInput<S>>, onUpdate?: () => void) => CB<StateHandlerReturn<S>>;
};
//#endregion
export { State, StateHandlerReturn, UseState, createState };
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