public void ParseDocumentTreatsPairsOfAtSignsAsEscapeSequence()
 {
     HtmlParserTestUtils.RunMultiAtEscapeTest(
         ParseDocumentTest,
         lastSpanAcceptedCharacters: AcceptedCharacters.Any
         );
 }
 public void ParseBlockTreatsPairsOfAtSignsAsEscapeSequence()
 {
     HtmlParserTestUtils.RunMultiAtEscapeTest(ParseBlockTest);
 }