import type { Context } from '../index';
/**
 * Creates a function that adds VTEX API AppKey and AppToken headers to requests.
 * These credentials are used for server-to-server authentication with VTEX APIs.
 *
 * @returns A function that accepts additional headers and returns them merged with authentication headers
 * @throws {ForbiddenError} When FS_DISCOVERY_APP_KEY or FS_DISCOVERY_APP_TOKEN environment variables are not set
 */
export declare const getWithAppKeyAndToken: () => <T extends Record<string, string>>(additionalHeaders?: T) => T & {
    'X-VTEX-API-AppKey': string;
    'X-VTEX-API-AppToken': string;
};
/**
 * Utility function to validate user authentication
 * Centralized validation logic for all account-related resolvers
 */
export declare const validateUserAuthentication: (ctx: Context) => Promise<void>;
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