import type { AIResult, InferenceCache, ResolvedColumn } from './engine';
declare const BLOB_VERSION: 1;
export interface InferencePersistencePayload {
    v: typeof BLOB_VERSION;
    entries: Record<string, {
        fp: string;
        result: AIResult;
    }>;
}
export declare function fingerprintCellValue(value: unknown): string;
export declare function readInferenceBlob(storage: Storage, scope: string): InferencePersistencePayload | null;
export declare function writeInferenceBlob(storage: Storage, scope: string, payload: InferencePersistencePayload): void;
export declare function hydrateInferenceCache(opts: {
    cache: InferenceCache;
    payload: InferencePersistencePayload | null;
    rows: Record<string, unknown>[];
    columns: ResolvedColumn[];
    domainRowId: (row: Record<string, unknown>) => string | number;
}): number;
export declare function snapshotInferenceForPersistence(opts: {
    cache: InferenceCache;
    rows: Record<string, unknown>[];
    columns: ResolvedColumn[];
    domainRowId: (row: Record<string, unknown>) => string | number;
}): InferencePersistencePayload;
export {};
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