/**
 * AIRGen HTTP API client with JWT authentication.
 *
 * Handles login, token caching, and automatic refresh.
 * Persists session tokens to ~/.airgen-session for reuse across CLI invocations.
 */
export interface ClientConfig {
    apiUrl: string;
    email: string;
    password: string;
    apiKey?: string;
}
export declare class AirgenClient {
    private config;
    private auth;
    private loginPromise;
    constructor(config: ClientConfig);
    private loadSession;
    private saveSession;
    private clearSession;
    /** The base API URL this client is configured for. */
    get apiUrl(): string;
    get<T = unknown>(path: string, query?: Record<string, string | number | undefined>): Promise<T>;
    post<T = unknown>(path: string, body?: unknown): Promise<T>;
    patch<T = unknown>(path: string, body?: unknown): Promise<T>;
    delete<T = unknown>(path: string, body?: unknown): Promise<T>;
    /** POST multipart/form-data (for file uploads). */
    postMultipart<T = unknown>(path: string, fields: Record<string, string>, file: {
        fieldName?: string;
        filename: string;
        contentType: string;
        data: Buffer;
    }): Promise<T>;
    /** Fetch binary content from an API path (e.g. document file download). */
    fetchBinary(path: string): Promise<{
        data: Buffer;
        contentType: string;
    }>;
    /** Fetch a static file from the server root (not the /api prefix). */
    fetchStaticFile(relativePath: string): Promise<{
        data: Buffer;
        contentType: string;
    }>;
    private request;
    private fetch;
    private handleResponse;
    private ensureAuth;
    private login;
    private refresh;
}
export declare class AirgenApiError extends Error {
    statusCode: number;
    apiMessage: string;
    endpoint: string;
    constructor(statusCode: number, apiMessage: string, endpoint: string);
}