visitAnnotation method
Implementation
@override
StringSink visitAnnotation(Expression spec, [StringSink? output]) {
  (output ??= StringBuffer()).write('@');
  spec.accept(this, output);
  output.write(' ');
  return output;
}@override
StringSink visitAnnotation(Expression spec, [StringSink? output]) {
  (output ??= StringBuffer()).write('@');
  spec.accept(this, output);
  output.write(' ');
  return output;
}