import { Emoji } from "applesauce-core/helpers";
import { NostrEvent } from "nostr-tools";
import { EventOperation } from "../types.js";
/** Sets the content for a reaction event */
export declare function setReaction(emoji?: string | Emoji): EventOperation;
/** Includes NIP-25 "e", "p", "k", and "a" tags for a reaction event to point to a parent event */
export declare function setReactionParent(event: NostrEvent): EventOperation;
