export declare type Action<T extends {}> = (getState: GetState<T>, dispatch: Dispatch<T>) => T | void | Promise<T | void>;
export declare type Dispatch<T extends {} = {}> = (action: Action<T>) => Promise<void>;
export declare type GetState<T extends {} = {}> = () => T;
export declare type ActionCreator<T extends {}, U extends readonly any[]> = (...args: U) => Action<T>;
export declare const $name: unique symbol;
export declare type NamedAction<T extends {}> = Action<T> & {
    [$name]: string;
};
export declare type SelfDispatchingActionCreator<T extends any[]> = (...args: T) => Promise<void>;
export declare type Middleware<T extends {}> = (store: Store<T>) => Store<T>;
export interface StoreOptions<T extends {}> {
    verbose?: boolean;
    logger?: (logger: (...args: any) => void, actionName: string, state: T) => void;
    middleware?: Middleware<T>[];
}
export declare const action: <T extends {}>(name: string, action: Action<T>) => NamedAction<T>;
export declare const isNamedAction: <T extends {}>(action: Action<T>) => action is NamedAction<T>;
export declare class Store<T extends {} = {}> extends EventTarget {
    #private;
    constructor(initialState: T, options?: StoreOptions<T>);
    get state(): T;
    dispatch(action: Action<T>): Promise<void>;
}