/** Cache mode for a route. */
export type CacheMode = "public" | "private" | "dynamic";
/** Cache policy declared by the route's data module. */
export interface CachePolicy {
    mode: CacheMode;
    revalidate: number;
    tags?: string[];
}
/** Default cache policy when none is declared. */
export declare const DEFAULT_CACHE_POLICY: CachePolicy;
/**
 * Normalizes a raw cache export from a data module into a CachePolicy.
 * Returns the default policy if the input is invalid or missing.
 */
export declare function normalizeCachePolicy(raw: unknown): CachePolicy;
/**
 * Determines whether a route's cache policy allows public caching for the
 * given request.
 *
 * Per §9.1:
 * - "dynamic" → never cache
 * - "private" → never cache publicly (requires private adapter)
 * - "public" → cache only if request has no Cookie/Authorization
 */
export declare function shouldCachePublic(policy: CachePolicy, request: Request): boolean;