import { MerkleProof } from '@zkopru/tree';
import { Fp } from '@zkopru/babyjubjub';
import BN from 'bn.js';
import { Proposal } from '@zkopru/database';
export interface BootstrapData {
    proposal: Proposal;
    blockHash: string;
    utxoStartingLeafProof: MerkleProof<Fp>;
    withdrawalStartingLeafProof: MerkleProof<BN>;
}
export interface BootstrapHelper {
    fetchBootstrapData(latest: string): Promise<BootstrapData>;
}
export declare class HttpBootstrapHelper implements BootstrapHelper {
    endpoint: string;
    constructor(endpoint: string);
    fetchBootstrapData(latest: string): Promise<BootstrapData>;
}
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