export class Repo {
    static isRepo(o: any): o is Repo;
    constructor(db: import("abstract-level/types/abstract-level.js").AbstractLevel<any, Uint8Array, Uint8Array>, strategy?: MergeStrategy | Array<MergeStrategy>);
    _db: import("abstract-level/types/abstract-level.js").AbstractLevel<any, Uint8Array, Uint8Array>;
    allowDetached: boolean;
    _strategies: MergeStrategy[];
    get mkKey(): typeof mkKey;
    _setHeadPtr(name: any, ptr: any): Promise<any>;
    _setLatestPtr(name: any, ptr: any): Promise<any>;
    _getTag(type: any, name: any): Promise<void | Uint8Array>;
    _getHeadPtr(name: any): Promise<void | Uint8Array>;
    _getTailPtr(name: any): Promise<void | Uint8Array>;
    _getLatestPtr(name: any): Promise<void | Uint8Array>;
    _getChainPtr(name: any): Promise<void | Uint8Array>;
    writeBlock(block: Block): Promise<boolean>;
    readBlock(id: SignatureBin): Promise<Block | undefined>;
    _hasBlock(id: any): Promise<boolean>;
    _traceOwnerOf(sig: any): Promise<any>;
    resolveFeed(sig: SignatureBin, stopCallback?: any): Promise<import("picofeed").Feed>;
    merge(feed: Feed | Block | ArrayBuffer | Uint8Array | Array<Block>, strategy: MergeStrategy): Promise<number>;
    _queryUserStrategy(block: any, inlineStrategy: any): Promise<boolean>;
    loadHead(key: PublicKey, stopCallback?: any): Promise<import("picofeed").Feed>;
    loadLatest(key: PublicKey, stopCallback?: any): Promise<import("picofeed").Feed>;
    loadFeed(ptr: SignatureBin, stopCallback?: number | ((block: Block, stop: (after: boolean) => void) => void)): Promise<Feed | undefined>;
    _chainLoad(next: any): AsyncGenerator<Block, void, unknown>;
    rollback(head: PublicKey | SignatureBin, stopAt?: SignatureBin | null): Promise<Feed | null>;
    get headOf(): (name: any) => Promise<void | Uint8Array>;
    get tailOf(): (name: any) => Promise<void | Uint8Array>;
    get latestOf(): (name: any) => Promise<void | Uint8Array>;
    get chainload(): (next: any) => AsyncGenerator<Block, void, unknown>;
    get ownerOf(): (sig: any) => Promise<any>;
    writeReg(key: any, value: any): Promise<boolean>;
    readReg(key: any): Promise<void | Uint8Array>;
    listHeads(): Promise<{
        key: Uint8Array;
        value: Uint8Array;
    }[]>;
    listTails(): Promise<{
        key: Uint8Array;
        value: Uint8Array;
    }[]>;
    listLatest(): Promise<{
        key: Uint8Array;
        value: Uint8Array;
    }[]>;
    listFeeds(): Promise<{
        key: Uint8Array;
        value: Uint8Array;
    }[]>;
    listFeedHeads(): Promise<{
        key: Uint8Array;
        value: Uint8Array;
    }[]>;
    _listRange(query: any): Promise<{
        key: Uint8Array;
        value: Uint8Array;
    }[]>;
    [REPO_SYMBOL]: boolean;
}
export type MergeStrategy = (block: Block, self: Repo) => boolean | Promise<boolean>;
export type Feed = import('picofeed').Feed;
export type SignatureBin = import('picofeed').SignatureBin;
export type PublicKey = import('picofeed').PublicKey;
export type BinaryLevel = import('abstract-level').AbstractLevel<any, Uint8Array, Uint8Array>;
declare function mkKey(type: any, key: any): Uint8Array;
import { Block } from 'picofeed';
declare const REPO_SYMBOL: unique symbol;
export {};