🏷️ Use TypeIs where possible

src/openforms/config/checks.py

@@ -1,8 +1,10 @@
-from typing import Any, Generator, Protocol, TypeGuard
+from typing import Any, Generator, Protocol
 
 from django.utils.encoding import force_str
 from django.utils.translation import gettext as _
 
+from typing_extensions import TypeIs
+
 from openforms.appointments.registry import register as appointments_register
 from openforms.contrib.brk.checks import BRKValidatorCheck
 from openforms.contrib.kadaster.config_check import BAGCheck, LocatieServerCheck
@@ -30,7 +32,7 @@ def _subset_match(requested: str | None, checking: str) -> bool:
     return requested == checking
 
 
-def is_plugin(plugin: Any) -> TypeGuard[AbstractBasePlugin]:
+def is_plugin(plugin: Any) -> TypeIs[AbstractBasePlugin]:
     if hasattr(plugin, "identifier"):
         return True
     return False

src/openforms/formio/utils.py

@@ -1,9 +1,10 @@
 import logging
 from dataclasses import dataclass
-from typing import Any, Callable, Iterator, TypeAlias, TypeGuard
+from typing import Any, Callable, Iterator, TypeAlias
 
 import elasticapm
 from glom import Coalesce, Path, glom
+from typing_extensions import TypeIs
 
 from openforms.typing import DataMapping, JSONObject, JSONValue
 from openforms.utils.glom import _glom_path_to_str
@@ -21,7 +22,7 @@
 )
 
 
-def _is_column_component(component: ComponentLike) -> TypeGuard[ColumnsComponent]:
+def _is_column_component(component: ComponentLike) -> TypeIs[ColumnsComponent]:
     return component.get("type") == "columns"