export type TWebPushIndexCollection = 'WebPushBindingDoc' | 'WebPushAdmissionDoc' | 'WebPushSpoolDoc';
export interface IWebPushIndexSpecification {
    collection: TWebPushIndexCollection;
    name: string;
    key: Record<string, 1 | -1>;
    unique?: true;
    expireAfterSeconds?: number;
    partialFilterExpression?: Record<string, unknown>;
}
export declare const webPushIndexSpecifications: IWebPushIndexSpecification[];
export declare function getWebPushIndexSpecifications(collectionArg: TWebPushIndexCollection): IWebPushIndexSpecification[];