message: [TS] Only output comment for input if there is one
diff: @@ -81,10 +81,12 @@ export default class TypescriptGenerator {
  keyInheritsNullability: true
  }), []);
  + if (description) {
  inputType.leadingComments = [{
  type: 'CommentBlock',
  - value: commentBlockContent(description || "")
  + value: commentBlockContent(description)
  } as t.CommentBlock]
  + }
  return inputType;
  }
  