/**
 * The following code is modified based on
 * https://github.com/nanobrowser/nanobrowser/blob/master/chrome-extension/src/background/agent/agents/errors.ts
 *
 * Apache-2.0 License
 * Copyright (c) 2024 alexchenzl
 * https://github.com/nanobrowser/nanobrowser/blob/master/LICENSE
 */
/**
 * Custom error class for chat model authentication errors
 */
export declare class ChatModelAuthError extends Error {
    readonly cause?: unknown | undefined;
    /**
     * Creates a new ChatModelAuthError
     *
     * @param message - The error message
     * @param cause - The original error that caused this error
     */
    constructor(message: string, cause?: unknown | undefined);
    /**
     * Returns a string representation of the error
     */
    toString(): string;
}
//# sourceMappingURL=errors.d.ts.map