/** Resolve a shiki language id from a file path, or undefined if unsupported. */
export declare function languageFromPath(filePath: string | undefined): string | undefined;
/** Configure highlighting without loading Shiki until the first code preview needs it. */
export declare function configureHighlighting(theme: string, syntaxEnabled?: boolean): void;
/** Initialize (or reinitialize) the shared shiki highlighter. Fire-and-forget safe. */
export declare function initHighlighting(theme: string, syntaxEnabled?: boolean): Promise<void>;
/**
 * Highlight `text` as `lang`, returning per-line truecolor ANSI strings that match
 * pi-code-previews' rendering (same shiki theme + token conversion). Returns null
 * when highlighting is disabled, the language is unsupported, the highlighter is
 * not yet ready, or the content is too large. Pass `invalidate` to request a
 * re-render once the highlighter/language becomes ready.
 */
export declare function highlightCode(text: string, lang: string, invalidate?: () => void): string[] | null;
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