/**
 * Phase 11: Jupyter Notebook cell extractor.
 *
 * Notebooks (.ipynb) are JSON files. This module extracts all executable code
 * cells and concatenates them into a single virtual Python source string so the
 * rule engine can scan notebook content without needing format-specific rules.
 *
 * Each cell is preceded by a machine-readable comment indicating its cell index
 * and original source line offset so that finding line numbers remain meaningful.
 */
export type NotebookExtractionResult = {
    kind: "ok";
    virtualSource: string;
    cellCount: number;
} | {
    kind: "empty";
    cellCount: number;
} | {
    kind: "invalid";
};
/**
 * Extracts code cells from a raw .ipynb JSON string.
 * Returns a virtual source string suitable for the rule engine.
 */
export declare function extractNotebookCells(rawJson: string): NotebookExtractionResult;