/**
 * Categories API Service
 * Handles fetching category definitions from the backend
 */
import type { CategoryDefinition } from '../types/index.js';
import type { EndpointConfig } from '../config/endpoints.js';
import type { AuthProvider } from '../types/auth.js';
/**
 * Fetch category definitions from API
 */
export declare function fetchCategories(endpointConfig: EndpointConfig, authProvider?: AuthProvider): Promise<CategoryDefinition[]>;
/**
 * Validate category definitions structure
 */
export declare function validateCategories(categories: CategoryDefinition[]): boolean;