src/vs/workbench/api/common/extHostTypes.ts/WorkspaceEdit/replaceNotebookCells
class WorkspaceEdit:	private replaceNotebookCells(uri: URI, startOrRange: vscode.NotebookRange, cellData: vscode.NotebookCellData[], metadata?: vscode.WorkspaceEditEntryMetadata): void {
		const start = startOrRange.start;
		const end = startOrRange.end;

		if (start !== end || cellData.length > 0) {
			this._edits.push({ _type: FileEditType.CellReplace, uri, index: start, count: end - start, cells: cellData, metadata });
		}
	}