import { OpenYoloErrorData, OpenYoloExtendedError } from './errors';
export declare const POST_MESSAGE_TYPES: Readonly<{
    verifyPing: "verifyPing";
    verifyAck: "verifyAck";
    readyForConnect: "readyForConnect";
    channelConnect: "channelConnect";
    channelReady: "channelReady";
    channelError: "channelError";
}>;
export declare type PostMessageType = keyof typeof POST_MESSAGE_TYPES;
export interface PostMessage<T extends PostMessageType> {
    type: T;
    data: PostMessageDataType<T>;
}
export declare type PostMessageDataTypes = {
    'readyForConnect': string;
    'verifyPing': string;
    'verifyAck': string;
    'channelReady': string;
    'channelConnect': string;
    'channelError': OpenYoloErrorData;
};
export declare type PostMessageDataType<K extends PostMessageType> = PostMessageDataTypes[K];
export declare const POST_MESSAGE_DATA_VALIDATORS: {
    [K in PostMessageType]: (value: any) => boolean;
};
export declare function postMessage<T extends PostMessageType>(type: T, data: PostMessageDataType<T>): PostMessage<T>;
export declare function verifyPingMessage(nonce: string): PostMessage<"verifyPing">;
export declare function verifyAckMessage(nonce: string): PostMessage<"verifyAck">;
export declare function channelReadyMessage(nonce: string): PostMessage<"channelReady">;
export declare function channelErrorMessage(error: OpenYoloExtendedError): PostMessage<"channelError">;
export declare function readyForConnectMessage(nonce: string): PostMessage<"readyForConnect">;
export declare function channelConnectMessage(nonce: string): PostMessage<"channelConnect">;