TypeScript AST transformation removes all blank lines

Workaround:

• replace empty lines with comment
• transform

• replace comments with empty line

  import {decodeEmptyLines, encodeEmptyLines} from 'ts-empty-line-encoder';
  
  let sourceCode = editor.document.getText();
  //encode empty lines
  sourceCode = encodeEmptyLines(sourceCode);
  const sourceFile = ts.createSourceFile(editor.document.fileName, sourceCode, ts.ScriptTarget.Latest, false, ts.ScriptKind.TS);
  const transformation = ts.transform(sourceFile, [organizeTransformer]);
  sourceCode = transformation.transformed[0].getFullText();
  //decode empty lines
  sourceCode = decodeEmptyLines(sourceCode);