import * as i0 from "@angular/core";
export declare class BehaviorRegistry {
    private _registeredBehaviors;
    constructor();
    registerBehavior(key: any, fn: () => Promise<any>): void;
    has(key: any): boolean;
    get(key: any): () => Promise<any>;
    static ɵfac: i0.ɵɵFactoryDef<BehaviorRegistry, never>;
    static ɵprov: i0.ɵɵInjectableDef<BehaviorRegistry>;
}