import { AuthMethod } from '../types';
/**
 * API Key authentication method
 */
export declare class ApiKeyAuth implements AuthMethod {
    private readonly apiKey;
    private verified;
    /**
     * Create a new API Key authentication method
     * @param apiKey - API Key for authentication
     * @throws RevMaxAuthenticationError if the API key is invalid
     */
    constructor(apiKey: string);
    /**
     * Get headers for authentication
     * @returns Headers for API requests
     */
    getHeaders(): Record<string, string>;
    /**
     * Set verification status
     * @param status - Verification status
     */
    setVerified(status: boolean): void;
    /**
     * Check if the API key has been verified
     * @returns Verification status
     */
    isVerified(): boolean;
}