import { ToolboxTool } from './tool.js';
import { AxiosInstance } from 'axios';
import { Protocol } from './protocol.js';
import { BoundParams } from './utils.js';
import { AuthTokenGetters } from './tool.js';
export type HeaderFunction = () => string | Promise<string>;
export type ClientHeaderProvider = string | HeaderFunction;
export type ClientHeadersConfig = Record<string, ClientHeaderProvider>;
/**
 * An asynchronous client for interacting with a Toolbox service.
 */
declare class ToolboxClient {
    #private;
    /**
     * The negotiated protocol version currently in use.
     */
    get protocolVersion(): Protocol;
    /**
     * Initializes the ToolboxClient.
     * @param {string} url - The base URL for the Toolbox service API (e.g., "http://localhost:5000").
     * @param {AxiosInstance} [session] - Optional Axios instance for making HTTP
     * requests. If not provided, a new one will be created.
     * @param {ClientHeadersConfig} [clientHeaders] - Optional initial headers to
     * be included in each request.
     * @param {string} [clientName] - Optional name of the client package.
     * @param {string} [clientVersion] - Optional version of the client package.
     */
    constructor(url: string, session?: AxiosInstance | null, clientHeaders?: ClientHeadersConfig | null, protocol?: Protocol | Protocol[] | string[] | string, clientName?: string, clientVersion?: string);
    /**
     * Asynchronously loads a tool from the server.
     * Retrieves the schema for the specified tool from the Toolbox server and
     * returns a callable (`ToolboxTool`) that can be used to invoke the
     * tool remotely.
     *
     * @param {string} name - The unique name or identifier of the tool to load.
     * @param {AuthTokenGetters | null} [authTokenGetters] - Optional map of auth service names to token getters.
     * @param {BoundParams | null} [boundParams] - Optional parameters to pre-bind to the tool.
     * @returns {Promise<ToolboxTool>} A promise that resolves
     * to a ToolboxTool function, ready for execution.
     * @throws {Error} If the tool is not found in the manifest, the manifest structure is invalid,
     * or if there's an error fetching data from the API.
     */
    loadTool(name: string, authTokenGetters?: AuthTokenGetters | null, boundParams?: BoundParams | null): Promise<ToolboxTool>;
    /**
     * Asynchronously fetches a toolset and loads all tools defined within it.
     *
     * @param {string | null} [name] - Name of the toolset to load. If null or undefined, loads the default toolset.
     * @param {AuthTokenGetters | null} [authTokenGetters] - Optional map of auth service names to token getters.
     * @param {BoundParams | null} [boundParams] - Optional parameters to pre-bind to the tools in the toolset.
     * @param {boolean} [strict=false] - If true, throws an error if any provided auth token or bound param is not used by at least one tool.
     * @returns {Promise<ToolboxTool[]>} A promise that resolves
     * to a list of ToolboxTool functions, ready for execution.
     * @throws {Error} If the manifest structure is invalid or if there's an error fetching data from the API.
     */
    loadToolset(name?: string, authTokenGetters?: AuthTokenGetters | null, boundParams?: BoundParams | null, strict?: boolean): Promise<ToolboxTool[]>;
}
export { ToolboxClient };