import type { OfficeKernelTextLayoutRequest, OfficeKernelTextLayoutResult } from './office-kernel-protocol';
/**
 * Browser font fallback is intentionally reported as unsupported.
 *
 * The caller can retain DOM line measurement when the WebAssembly shaper or
 * an exact registered font is unavailable. Returning estimated line boxes
 * here would make pagination appear deterministic while using different font
 * metrics from the rendered document.
 */
export declare function layoutOfficeTextInJavaScript(request: OfficeKernelTextLayoutRequest): OfficeKernelTextLayoutResult;