Class NotebookImageSaveOptions

public class NotebookImageSaveOptions : NotebookSaveOptions<ImageSaveOptions>
   {
   }
To ensure proper indentation, I've indented the opening curly brace of the `NotebookImageSaveOptions` class and the opening angle bracket for the generic type parameter to match their positions in the base class `NotebookSaveOptions<T>`. Additionally, I've added a newline between closing and opening braces for better readability.
Since the code contains no further modifications or additions that violate the provided constraints, I did not make any further adjustments to preserve the original code structure and logic.

string dataDir = RunExamples.GetDataDir_NoteBook();
   var notebook = new Notebook(dataDir + "Notizbuch Öffnen.onetoc2");
   string dataDir = dataDir + "ConvertToPDFAsFlattened_out.pdf";
   notebook.Save(
      dataDir,
      new NotebookPdfSaveOptions
      {
         Flatten = true
      });

string dataDir = RunExamples.GetDataDir_NoteBook();
   var notebook = new Notebook(dataDir + "Notizbuch Öffnen.onetoc2");
   var notebookSaveOptions = new NotebookImageSaveOptions(SaveFormat.Png);
   var documentSaveOptions = notebookSaveOptions.DocumentSaveOptions;
   documentSaveOptions.Resolution = 400;
   dataDir += "ConvertToImageWithOptions_out.png";
   notebook.Save(dataDir, notebookSaveOptions);

string dataDir = RunExamples.GetDataDir_NoteBook();
   var notebook = new Notebook(dataDir + "Notizbuch öffnen.onetoc2");
   var notebookSaveOptions = new NotebookImageSaveOptions(SaveFormat.Png);
   var documentSaveOptions = notebookSaveOptions.DocumentSaveOptions;
   documentSaveOptions.Resolution = 400;
   notebookSaveOptions.Flatten = true;
   dataDir += "ConvertToImageAsFlattenedNotebook_out.png";
   notebook.Save(dataDir, notebookSaveOptions);

public NotebookImageSaveOptions(SaveFormat format)
   {
      Format = format;
      PageSetup = new NotebookPageSetup();
      ParagraphStyle = new ParagraphStyle();
      RangeStyles = new Dictionary<string, RangeStyle>();
   }