import { PubSub } from '@google-cloud/pubsub';
import { Type } from '@nestjs/common';
import { GooglePubSubModuleAsyncOptions, GooglePubSubModuleOptions, GooglePubSubTopicOptions } from '../interfaces';
export declare function getProjectNameToken(projectNameOrOptions?: GooglePubSubModuleOptions | GooglePubSubModuleAsyncOptions | string): string | Type<PubSub>;
export declare const generateString: () => string;
export declare function getTopicNameToken(topic: string, projectNameOrOptions?: GooglePubSubTopicOptions | string): string;
export declare function getProjectPrefix(projectNameOrOptions?: GooglePubSubModuleOptions | string): string;