import { Readable } from 'stream';
import type Repository from './repository';
import type Ref from './ref';
import type { Scope } from '@teambit/legacy.scope';
import type { Lane, LaneHistory, ModelComponent } from '../models';
export type ComponentWithCollectOptions = {
    component: ModelComponent;
    version: string;
    collectParents: boolean;
    collectParentsUntil?: Ref | null;
    collectArtifacts: boolean;
    includeVersionHistory?: boolean;
};
export declare class ObjectsReadableGenerator {
    private repo;
    private callbackOnceDone;
    readable: Readable;
    private pushed;
    constructor(repo: Repository, callbackOnceDone: Function);
    pushObjectsToReadable(componentsWithOptions: ComponentWithCollectOptions[]): Promise<void>;
    pushLanes(lanesToFetch: Lane[], lanesHistory?: LaneHistory[]): Promise<void>;
    pushObjects(refs: Ref[], scope: Scope): Promise<void>;
    private closeReadableSuccessfully;
    private closeReadableFailure;
    private bitObjectToItem;
    private getObjectGracefully;
    private pushScopeMeta;
    private push;
    private pushManyObjects;
    private pushComponentObjects;
}