/**
 * Fetch authentication utilities
 *
 * Shared logic for building HTTP headers with authentication.
 * Used by components that make authenticated API requests (e.g., FormAutocomplete).
 *
 * @module utils/fetchWithAuth
 */
import type { AuthProvider } from '../types/auth.js';
/**
 * Build fetch headers with optional authentication
 *
 * Constructs standard JSON request headers and merges in authentication
 * headers from the provided AuthProvider, if available.
 *
 * @param authProvider - Optional auth provider to get headers from
 * @returns Promise resolving to a complete headers object
 *
 * @example
 * ```typescript
 * const headers = await buildFetchHeaders(authProvider);
 * const response = await fetch(url, { headers });
 * ```
 */
export declare function buildFetchHeaders(authProvider?: AuthProvider): Promise<Record<string, string>>;