[Option('o',nameof(OutputFile),Required=false,HelpText="Output-file for OCR-content. (OCR-content will be printed to console if output-file is not set.)")]
publicstringOutputFile{get;set;}
[Option('l',"Languages",HelpText="Expected languages of the document-content in ISO 639-3 format",Default="eng")]
[Option('l',"Languages",HelpText="Expected languages of the document-content in ISO 639-3 format",Default=newstring[]{"eng"})]
GRYLibrary.Core.Misc.Utilities.AssertCondition(File.Exists(expectedOutput),$"File \"{expectedOutput}\" not found after running \">{program}{argument}\"; StdOut: {string.Join("\n",e.AllStdOutLines)}; StdErr: {string.Join("\n",e.AllStdErrLines)}");