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Edit File: isnone.py

from typing import Any, Optional from hamcrest.core.base_matcher import BaseMatcher from hamcrest.core.description import Description from hamcrest.core.matcher import Matcher from .isnot import is_not __author__ = "Jon Reid" __copyright__ = "Copyright 2011 hamcrest.org" __license__ = "BSD, see License.txt" class IsNone(BaseMatcher[Optional[Any]]): def _matches(self, item: Any) -> bool: return item is None def describe_to(self, description: Description) -> None: description.append_text("None") def none() -> Matcher[Optional[Any]]: """Matches if object is ``None``.""" return IsNone() def not_none() -> Matcher[Optional[Any]]: """Matches if object is not ``None``.""" return is_not(none())