import type { Callback } from '@forgerock/sdk-types';
import { BaseCallback } from './base-callback.js';
/**
 * Represents a callback used to deliver and collect miscellaneous data.
 */
export declare class MetadataCallback extends BaseCallback {
    payload: Callback;
    /**
     * @param payload The raw payload returned by OpenAM
     */
    constructor(payload: Callback);
    /**
     * Gets the callback's data.
     */
    getData<T>(): T;
}
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