How to attach an image to an audio recording using eyed3?

Question

Python

I'm trying to attach an image to a track. There are no errors, but as a result, the image was not, and is not.
Although it shows that in the tags, something is written.

from eyed3 import load
from eyed3.id3 import Tag
from eyed3.mp3 import Mp3AudioFile
from eyed3.plugins.art import ArtFile


file: Mp3AudioFile = load(file_title)
tag: Tag = Tag()
art: ArtFile = ArtFile('cover.jpg')
tag.images.set(type_=art.id3_art_type, img_data=art.image_data, mime_type=art.mime_type)
file.tag = tag
file.tag.save()

Most likely I misunderstood something. But other tags are recorded. The problem is just the picture.