/**
 * MRSF rehype plugin — hast tree transformation (overlay gutter architecture).
 *
 * Walks the hast tree and annotates block elements with `data-mrsf-line`
 * attributes. Adds a highlight class on commented lines. Appends a
 * `<script type="application/mrsf+json">` with serialized comment data
 * for the client-side MrsfController to consume.
 *
 * NO visual DOM is injected — all badges, tooltips, and gutter elements
 * are created at runtime by the controller.
 */
import type { Root } from "hast";
import type { LineMap } from "./types.js";
export interface TransformOptions {
    /** Whether to add mrsf-line-highlight class on commented elements. Default: false. */
    lineHighlight?: boolean;
    dataContainer?: "script" | "element";
    dataElementId?: string;
}
/**
 * Transform a hast tree: annotate elements with data-mrsf-line and
 * append embedded comment data for the MrsfController.
 */
export declare function transformTree(tree: Root, lineMap: LineMap, options?: TransformOptions): void;
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