import type { Reducer } from './state';
export type Event<Payload = void> = {
    readonly type: string;
    readonly payload: Payload;
    store?: Reducer<any, any>;
};
export type BaseEventCreator<Payload> = {
    getType(): string;
    store?: Reducer<any, any>;
};
export type EmptyEventCreator = BaseEventCreator<void> & (() => Event<void>);
export type EventCreator0<Payload> = BaseEventCreator<Payload> & (() => Event<Payload>);
export type EventCreator1<A1, Payload = A1> = BaseEventCreator<Payload> & ((arg1: A1) => Event<Payload>);
export type EventCreator2<A1, A2, Payload = A1> = BaseEventCreator<Payload> & ((arg1: A1, arg2: A2) => Event<Payload>);
export type EventCreator3<A1, A2, A3, Payload = A1> = BaseEventCreator<Payload> & ((arg1: A1, arg2: A2, arg3: A3) => Event<Payload>);
export type EventCreatorN<Payload = any> = BaseEventCreator<Payload> & ((...args: any) => Event<Payload>);
export type PayloadTransformer0<Payload> = () => Payload;
export type PayloadTransformer1<A1, Payload> = (arg1: A1) => Payload;
export type PayloadTransformer2<A1, A2, Payload> = (arg1: A1, arg2: A2) => Payload;
export type PayloadTransformer3<A1, A2, A3, Payload> = (arg1: A1, arg2: A2, arg3: A3) => Payload;
export type PayloadTransformerN<Payload> = (...args: any) => Payload;
/**
 * @private
 */
export type AnyEventCreator<Payload = any> = EmptyEventCreator | EventCreator1<any, Payload> | EventCreator2<any, any, Payload> | EventCreator3<any, any, any, Payload>;
/**
 * @private
 */
export type AnyPayloadTransformer = PayloadTransformer0<any> | PayloadTransformer1<any, any> | PayloadTransformer2<any, any, any> | PayloadTransformer3<any, any, any, any>;
export type EventCreators = {
    [K: string]: AnyEventCreator;
};
export declare const isEvent: (event: any) => event is Event<void>;
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