Mypy reports ignore_anchors isn't an attribute

Mypy reports this error:

mypy a.py
a.py:3: error: "HTML2Text" has no attribute "ignore_anchors" [attr-defined]
Found 1 error in 1 file (checked 1 source file)

Version by `html2text --version` 2024.2.26

Python version `python --version` Python 3.10.12

Test script a.py

from html2text import HTML2Text
a = HTML2Text()
a.ignore_anchors = True
a.ignore_images = True
a.ignore_emphasis = True
a.ignore_tables = True