import { IServiceContainer } from '@aesop-fables/containr';
import { DataStore } from '../DataStore';
import { Observable } from 'rxjs';
import { DataStoreToken } from '../DataStoreToken';
import { KeysOf } from '../Metadata';
export type AnonymousPredicateContext = {
    container: IServiceContainer;
    dataStore: DataStore;
};
export declare function useAnonymousPredicateContext(): {
    container: IServiceContainer;
    dataStore: DataStore;
};
export type AnonymousPredicate = {
    createObservable(context: AnonymousPredicateContext): Observable<boolean>;
};
export declare function usePredicate<Registry>(token: DataStoreToken, keys?: KeysOf<Registry>): boolean;