/**
 * Registry for plain-text notebook format adapters.
 *
 * .ipynb is intentionally NOT registered here: dispatch sites check .ipynb
 * first and fall through to the existing Jupyter JSON code path untouched.
 */
import { NotebookFormatAdapter } from './types';
export declare function getFormatAdapter(filePath: string): NotebookFormatAdapter | null;
export declare function defaultKernelForPath(filePath: string): string;
export declare function isTextNotebookPath(filePath: string): boolean;
/** True for any path Nebula can treat as a notebook (.ipynb or text format). */
export declare function isNotebookPath(filePath: string): boolean;