/**
 * Functions in this module are provided for converting from Jupyter Notebook
 * Format v4 to nteract's in-memory format, affectionately referred to as
 * commutable.
 *
 * See: https://github.com/jupyter/nbformat/blob/62d6eb8803616d198eaa2024604d1fe923f2a7b3/nbformat/v4/nbformat.v4.schema.json
 *
 * The main goal here is consistency and compliance with the v4 spec. The types
 * contained in here (non Immutable ones) are constrained to the disk based
 * notebook format.
 *
 */
import { Record } from "immutable";
import { ImmutableCell } from "./cells";
import { ImmutableOutput, OnDiskOutput } from "./outputs";
import { ExecutionCount, JSONObject, MimeBundle, MultiLineString } from "./primitives";
import { ImmutableNotebook, NotebookRecordParams } from "./structures";
export interface CodeCell {
    cell_type: "code";
    id?: string;
    metadata: JSONObject;
    execution_count: ExecutionCount;
    source: MultiLineString;
    outputs: OnDiskOutput[];
}
export interface MarkdownCell {
    attachments?: {
        [filename: string]: MimeBundle<MultiLineString>;
    };
    cell_type: "markdown";
    id?: string;
    metadata: JSONObject;
    source: MultiLineString;
}
export interface RawCell {
    cell_type: "raw";
    id?: string;
    metadata: JSONObject;
    source: MultiLineString;
}
export declare type Cell = CodeCell | MarkdownCell | RawCell;
export interface NotebookV4 {
    cells: Cell[];
    metadata: JSONObject;
    nbformat: 4;
    nbformat_minor: number;
}
export declare function fromJS(notebook: NotebookV4): Record<NotebookRecordParams> & Readonly<NotebookRecordParams>;
export declare function outputToJS(output: ImmutableOutput): OnDiskOutput;
/**
 * Converts an immutable cell to a JSON cell.
 *
 * @param immCell An immutable representation of a cell.
 *
 * @returns A JSON representation of the same cell.
 */
export declare function cellToJS(immCell: ImmutableCell): Cell;
/**
 * Converts an immutable representation of a notebook to a JSON representation.
 *
 * @param immnb The immutable representation of a notebook.
 *
 * @returns The JSON representation of a notebook.
 */
export declare function toJS(immnb: ImmutableNotebook): NotebookV4;
export declare function isNotebookV4(value: any): value is NotebookV4;