import { EffectType } from '@devvit/protos/json/devvit/ui/effects/v1alpha/effect.js';
import { type WebViewInternalMessage } from '@devvit/protos/json/devvit/ui/effects/web_view/v1alpha/post_message.js';
import type { WebViewInternalEventMessage } from '@devvit/protos/json/devvit/ui/events/v1alpha/web_view.js';
/** `WebViewInternalMessage.type`. */
export declare const webViewInternalMessageType = "devvit-internal";
export type Effect = Omit<WebViewInternalMessage, 'id' | 'scope' | 'type'> & {
    type: EffectType;
};
/**
 * Emits an effect to the parent window returns immediately.
 *
 * @param effect - The effect to be emitted to the parent window
 * @param requestId - Optional request id used to correlate request/response messages
 * @description
 * This function handles effects that don't require a response, and can also
 * set a request id when replying to client-originated requests.
 */
export declare const emitEffect: (effect: Readonly<Effect>, requestId?: string) => void;
/**
 * Emits an effect to the parent window and returns a promise that resolves with the response message.
 *
 * @param effect - The effect to be emitted to the parent window
 * @returns A promise that resolves with the response message
 *
 * @description
 * This function handles effects that require a response.
 */
export declare const emitEffectWithResponse: (effect: Readonly<Effect>) => Promise<WebViewInternalEventMessage | undefined>;
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