import { OperatorFunction } from "rxjs";
import type { CastConstructor, CastRefEventStore } from "../casts/cast.js";
import { EventCast } from "../casts/index.js";
import { NostrEvent } from "../helpers/event.js";
/** Casts an event to a specific type */
export declare function castEventStream<C extends EventCast>(cls: CastConstructor<C>, store?: CastRefEventStore): OperatorFunction<NostrEvent | undefined, C | undefined>;
/** Casts and array of events to an array of casted events and filters out undefined values */
export declare function castTimelineStream<C extends EventCast>(cls: CastConstructor<C>, store?: CastRefEventStore): OperatorFunction<NostrEvent[], C[]>;