import { Request } from 'express';
/**
 * Interface for ExpertServer permissions
 * Used to validate user authentication and permissions
 */
export interface ExpertServerPerms {
    /**
     * Check if a user is allowed to perform an operation
     * @param user_id - The user ID
     * @param req - The Express request being processed
     * @throws Error if the operation is not allowed with a custom error message
     * @returns Promise that resolves with optional listIds if the operation is allowed
     */
    checkPerms(user_id: string, req: Request): Promise<{
        listIds?: string[];
    }>;
    /**
     * Get the user ID associated with a public key
     * @param pubkey - Public key of the user
     * @returns Promise that resolves with the user ID
     */
    getUserId(pubkey: string): Promise<string>;
}