extensions/ipynb/src/deserializers.ts/createNotebookCellDataFromJupyterCell
function createNotebookCellDataFromJupyterCell(
	cellLanguage: string,
	cell: nbformat.IBaseCell
): NotebookCellData | undefined {
	switch (cell.cell_type) {
		case 'raw': {
			return createNotebookCellDataFromRawCell(cell as nbformat.IRawCell);
		}
		case 'markdown': {
			return createNotebookCellDataFromMarkdownCell(cell as nbformat.IMarkdownCell);
		}
		case 'code': {
			return createNotebookCellDataFromCodeCell(cell as nbformat.ICodeCell, cellLanguage);
		}
	}

	return;
}