import { type SiteVersion } from '../../api/site-version';
import { type Action, type UnknownAction } from '../actions';
export type State = SiteVersion | null;
export declare function getInitialState(siteVersion?: SiteVersion | null): State;
export declare function getSiteVersion(state: State): SiteVersion | null;
export declare function reducer(state: State | undefined, action: Action | UnknownAction): State;
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