Returns a type of the ApiWatermarkSettings class.
This method doesn't have any parameters.
builder.CreateFile("docx");
var oDocument = Api.GetDocument();
oDocument.InsertWatermark("Watermark", true);
var oSettings = oDocument.GetWatermarkSettings();
oSettings.SetText("ONLYOFFICE");
oDocument.SetWatermarkSettings(oSettings);
var sType = oSettings.GetClassType();
var oParagraph = oDocument.GetElement(0);
oParagraph.AddText("Class type: " + sType);
builder.SaveFile("docx", "GetClassType.docx");
builder.CloseFile();