Segmentation fault with EmbeddedFile class #33

I want to use the EmbeddedFile class. However, I get a segmentation fault.

from poppler import load_from_file

pdf_document = load_from_file("Portfolio.pdf")

for file in pdf_document.embedded_files():
     print(file.name)

What kind of information could you help further? I saw at the TODO file, that EmbeddedFile is not still testet. Does it work yet?