import { IRef, Params, SubFn } from "./model";
/**
 * Each subscription maintains its own cache of active subscriptions based
 * on the params passed to it.
 *
 * TODO do we need to support a global clearSubscriptionCaches method?
 */
export interface ISubCache<V, P extends Params = []> {
    /**
     * Get a cached reference of the sub for the given params, if any exists
     */
    get(params: P): IRef<V> | undefined;
    /**
     * Store a cached reference
     */
    put(params: P, ref: IRef<V>): void;
    /**
     * Delete the cached reference for the given sub
     */
    delete(params: P): void;
}
export declare function createCacheFor<V, P extends Params = []>(fn: SubFn<V, P>): ISubCache<V, P>;