Put the "includeEmptyLines" property in the documentation.

[halleffernando]

By default the library removes blank lines, but the documentation doesn't tell you how to show them. But analyzing the code, I found the property "includeEmptyLines" , which brings the lines blank.
A future treatment would be for it to return an object instead of null.
Otherwise, congratulations on the work.

[jan-slupski]

Thanks halleffernando for your comment/request - was looking for that option too!