/**
 * Copyright 2025 The Artinet Project
 * SPDX-License-Identifier: Apache-2.0
 */
import { A2A } from "../../../types/index.js";
/**
 * Extracts and aggregates the text, file, and data contents from an array of Part objects.
 *
 * @param parts - An array of Part objects, which may include text, file, or data kinds.
 * @returns An object containing:
 *   - text: Concatenated string of all text parts.
 *   - file: Array of file contents from file parts.
 *   - data: Array of data contents from data parts.
 *
 * @remarks
 * This utility is used to normalize and access the payloads of message parts
 * in a structured way for downstream processing.
 */
export declare const getParts: (parts: A2A.Part[]) => {
    text: A2A.TextPart["text"];
    file: A2A.FilePart["file"][];
    data: A2A.DataPart["data"][];
};
/**
 * Extracts and aggregates the text, file, and data payloads from a Message's parts array.
 *
 * @param message - The Message object containing an array of Part objects (text, file, or data).
 * @returns An object with the following properties:
 *   - text: A single string containing the concatenated text from all text parts.
 *   - file: An array of file payloads from all file parts.
 *   - data: An array of data payloads from all data parts.
 *
 * @remarks
 * This utility function is intended to simplify downstream processing by normalizing
 * the payloads of a Message's parts into a structured object. It is especially useful
 * when handling user input or agent responses that may include multiple content types.
 *
 * @example
 * const payload = getPayload(message);
 * console.log(payload.text); // "Hello world"
 * console.log(payload.file); // [<file1>, <file2>]
 * console.log(payload.data); // [<data1>, <data2>]
 */
export declare const getPayload: (message: A2A.Message) => {
    text: A2A.TextPart["text"];
    file: A2A.FilePart["file"][];
    data: A2A.DataPart["data"][];
};