Bug: typing.NotRequired is ignored in TypedDict coverage

[vrslev]

Description

When a field is annotated with typing.NotRequired, expectation is that TypedDictFactory.coverage would generate examples where that field is not set.

URL to code causing the issue

No response

MCVE

from typing import NotRequired, TypedDict

from polyfactory.factories import TypedDictFactory


class Example(TypedDict):
    value: NotRequired[int]


print(list(TypedDictFactory.create_factory(Example).coverage()))
# Prints: [{'value': 7853}]
# Expected: [{'value': 7853}, {}]

Steps to reproduce

1. Run with uv:

echo "\
from typing import NotRequired, TypedDict

from polyfactory.factories import TypedDictFactory


class Example(TypedDict):
    value: NotRequired[int]


print(list(TypedDictFactory.create_factory(Example).coverage()))
" | uv run --with polyfactory --python 3.13 -

2. See that it provides only one example: with value field set.

Screenshots

"In the format of: ![SCREENSHOT_DESCRIPTION](SCREENSHOT_LINK.png)"

Logs

Release Version

2.19.0

Platform

• [ ] Linux
• [x] Mac
• [ ] Windows
• [ ] Other (Please specify in the description above)