import type { IframeMessagePortData, IframeMessagePortMap } from "../Events/MessagePortEvents";
import type { IframeEvent, IframeQuery, IframeQueryMap } from "../Events/IframeEvent";
import { CheckedIframeMessagePort } from "./CheckedIframeMessagePort";
export declare function sendToWorkadventure(content: IframeEvent, transfer?: Transferable[]): void;
export declare const answerPromises: Map<number, {
    resolve: (value: IframeQueryMap[keyof IframeQueryMap]["answer"] | PromiseLike<IframeQueryMap[keyof IframeQueryMap]["answer"]>) => void;
    reject: (reason?: any) => void;
}>;
export declare const answerPromisesMessagePort: Map<number, {
    resolve: () => void;
    reject: (reason?: any) => void;
}>;
export declare function queryWorkadventure<T extends keyof IframeQueryMap>(content: IframeQuery<T>, options?: {
    transfer?: Transferable[];
    signal?: AbortSignal;
    timeout?: number | null;
}): Promise<IframeQueryMap[T]["answer"]>;
export declare function openMessagePort<K extends keyof IframeMessagePortMap>(type: K, data: IframeMessagePortData<K>["data"]): Promise<CheckedIframeMessagePort<K>>;
/**
 * !! be aware that the implemented attributes (addMethodsAtRoot and subObjectIdentifier) must be readonly
 *
 *
 */
export declare abstract class IframeApiContribution<T extends {
    callbacks: unknown[];
}> {
    abstract callbacks: T["callbacks"];
}