src/vs/workbench/api/common/extHostNotebookEditors.ts/ExtHostNotebookEditors/$acceptEditorViewColumns
class ExtHostNotebookEditors:	$acceptEditorViewColumns(data: INotebookEditorViewColumnInfo): void {
		for (const id in data) {
			const editor = this._notebooksAndEditors.getEditorById(id);
			editor._acceptViewColumn(typeConverters.ViewColumn.to(data[id]));
		}
	}