import { EncryptedBlob, MEKernelLike, SemanticPath } from './types.js';
import { ColumnarChunkEnvelope } from './secret-storage-columnar.js';
export type DecryptedChunkData = any | ColumnarChunkEnvelope;
export declare function isColumnarChunkData(data: unknown): data is ColumnarChunkEnvelope;
export declare function readDecryptedChunkItem(data: DecryptedChunkData, index: number): any;
export declare function readDecryptedChunkRange(data: DecryptedChunkData, start: number, end: number): any[];
export declare function materializeDecryptedChunk(data: DecryptedChunkData): any;
export declare function chunkCacheKey(scopeKey: string, chunkId: string): string;
export declare function clearScopeChunkCache(self: MEKernelLike, scopeKey: string): void;
export declare function createBranchContainerForRel(rel: SemanticPath): any;
export declare function getChunkId(self: MEKernelLike, path: SemanticPath, scope: SemanticPath): string;
export declare function getChunkRelativePath(self: MEKernelLike, path: SemanticPath, scope: SemanticPath): SemanticPath;
export declare function getLegacyChunkIdForPath(_self: MEKernelLike, path: SemanticPath, scope: SemanticPath): string | null;
export declare function setAtPath(obj: any, rel: SemanticPath, value: any): void;
export declare function flattenLeaves(node: any, rel: SemanticPath, out: Array<{
    rel: SemanticPath;
    value: any;
}>): void;
export declare function migrateLegacyScopeToChunks(self: MEKernelLike, scope: SemanticPath, legacyBlob: EncryptedBlob, scopeSecret: string): void;
export declare function ensureScopeChunks(self: MEKernelLike, scope: SemanticPath, scopeSecret: string): Record<string, EncryptedBlob>;
export declare function getChunkBlob(self: MEKernelLike, scope: SemanticPath, chunkId: string): EncryptedBlob | undefined;
export declare function setChunkBlob(self: MEKernelLike, scope: SemanticPath, chunkId: string, blob: EncryptedBlob, scopeSecret: string): void;
export declare function listEncryptedScopes(self: MEKernelLike): string[];
export declare function deleteEncryptedScope(self: MEKernelLike, scopeKey: string): void;
export declare function primeDecryptedBranchCache(self: MEKernelLike, scope: SemanticPath, chunkId: string, data: any): void;
export declare function getDecryptedChunk(self: MEKernelLike, scope: SemanticPath, scopeSecret: string, chunkId: string): DecryptedChunkData | undefined;