import { z } from 'zod';
export declare const ApiHandlerHeaders: {
    SiteVersion: string;
};
export declare const siteVersionSchema: z.ZodObject<{
    version: z.ZodString;
    token: z.ZodString;
}, "strip", z.ZodTypeAny, {
    version: string;
    token: string;
}, {
    version: string;
    token: string;
}>;
export type SiteVersion = z.infer<typeof siteVersionSchema>;
export declare function serializeSiteVersion(data: SiteVersion): string;
export declare function secondsUntilSiteVersionExpiration(siteVersion: SiteVersion): number;
export declare function deserializeSiteVersion(input: string): SiteVersion | null;
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