import { Observable } from 'rxjs';
export declare const defaults: Record<string, string | Observable<string>>;
export type LocalsKeys = keyof typeof defaults;
declare class Locals {
    locals: Record<string, string | Observable<string>>;
    constructor(newLocals?: Partial<Record<LocalsKeys, string | Observable<string>>>);
    get: (key: string) => Observable<string>;
}
export default Locals;