import type { FilePreviewStructuredContent } from '../../../types.js';
import type { RenderPayload } from './model.js';
export declare function getFileExtensionForAnalytics(filePath: string): string;
export declare function isPreviewStructuredContent(value: unknown): value is FilePreviewStructuredContent;
export declare function buildRenderPayload(meta: FilePreviewStructuredContent, text: string): RenderPayload;
export declare function extractToolText(value: unknown): string | undefined;
export declare function extractRenderPayload(value: unknown): RenderPayload | undefined;
export declare function assertSuccessfulEditBlockResult(result: unknown): void;
export declare function isLikelyUrl(filePath: string): boolean;
export declare function buildBreadcrumb(filePath: string): string;
export declare function countContentLines(content: string): number;