async/src/main/java/com/stanfy/enroscar/async/content/CursorAsyncBuilder.java
public <D> BaseCursorAsyncBuilder<? extends BaseCursorAsyncBuilder<?, D>, D> convertFirst(
      final CursorConverter<D> converter) {
    return convert(singleRecordConverter(converter));
  }
public <D> BaseCursorAsyncBuilder<? extends BaseCursorAsyncBuilder<?, D>, D> convertFirst(
      final CursorConverter<D> converter) {
    return convert(singleRecordConverter(converter));
  }
Convert {@code Cursor} into a POJO using a {@code CursorConverter}.
Only the first cursor record will be converted. Provided {@code CursorConverter} should not
invoke any {@code move} methods on a cursor.