/// <reference types="node" />
import { SmartContractLib, ByteString } from 'scrypt-ts';
export interface MerkleTreiLeaf {
    key(): bigint;
    serialize(): Buffer;
}
export declare class MerkleTreiNode {
    nodeMap: Map<number, Buffer>;
    constructor();
    addSubNode(key: number, value: Buffer): void;
    getHash(emptyHash: Buffer): Buffer;
    getNeighbors(subIndex: number, emptyHash: Buffer): Buffer;
}
export declare function hashFunc(buf: Buffer): Buffer;
export declare class MerkleTreiTree extends SmartContractLib {
    static readonly NEIGHBOR_LEN = 5100;
    static readonly HEIGHT = 32;
    static addTxid(txid: ByteString, oldMerkleRoot: ByteString, merklePath: ByteString): ByteString;
}
export declare class MerkleTreiTreeHelper {
    leafNodes: Map<bigint, MerkleTreiLeaf>;
    emptyHashs: Buffer[];
    hashNodeSets: Map<bigint, MerkleTreiNode>[];
    leafSize: number;
    constructor(leafNodeArray: MerkleTreiLeaf[], leafSize: number);
    get merkleRoot(): any;
    get size(): number;
    addLeafNode(leafNode: MerkleTreiLeaf): void;
    getNodeIndex(key: bigint): {
        index: bigint;
        subIndex: number;
    };
    buildMerkleTree(): void;
    updateLeafNode(leafNode: MerkleTreiLeaf): {
        oldLeafBuf: Buffer;
        merklePath: Buffer;
        newLeafBuf: Buffer;
    };
    updateTree(leaf: MerkleTreiLeaf): Buffer;
    getNode(key: bigint): MerkleTreiLeaf;
}