type hints: Introduce settings protocol

Related #2273

lib/logitech_receiver/settings_templates.py

@@ -24,6 +24,7 @@ import traceback
 from time import time
 from typing import Any
 from typing import Callable
+from typing import Protocol
 
 from solaar.i18n import _
 
@@ -1805,7 +1806,95 @@ SETTINGS: list[settings.Setting] = [
 ]
 
 
-def check_feature(device, settings_class: settings.Setting) -> None | bool | Any:
+class SettingsProtocol(Protocol):
+    @property
+    def name(self):
+        ...
+
+    @property
+    def label(self):
+        ...
+
+    @property
+    def description(self):
+        ...
+
+    @property
+    def feature(self):
+        ...
+
+    @property
+    def register(self):
+        ...
+
+    @property
+    def kind(self):
+        ...
+
+    @property
+    def min_version(self):
+        ...
+
+    @property
+    def persist(self):
+        ...
+
+    @property
+    def rw_options(self):
+        ...
+
+    @property
+    def validator_class(self):
+        ...
+
+    @property
+    def validator_options(self):
+        ...
+
+    @classmethod
+    def build(cls, device):
+        ...
+
+    def val_to_string(self, value):
+        ...
+
+    @property
+    def choices(self):
+        ...
+
+    @property
+    def range(self):
+        ...
+
+    def _pre_read(self, cached, key=None):
+        ...
+
+    def read(self, cached=True):
+        ...
+
+    def _pre_write(self, save=True):
+        ...
+
+    def update(self, value, save=True):
+        ...
+
+    def write(self, value, save=True):
+        ...
+
+    def acceptable(self, args, current):
+        ...
+
+    def compare(self, args, current):
+        ...
+
+    def apply(self):
+        ...
+
+    def __str__(self):
+        ...
+
+
+def check_feature(device, settings_class: SettingsProtocol) -> None | bool | Any:
     if settings_class.feature not in device.features:
         return
     if settings_class.min_version > device.features.get_feature_version(settings_class.feature):

lib/solaar/cli/config.py

@@ -19,6 +19,7 @@ import yaml
 from logitech_receiver import settings
 from logitech_receiver import settings_templates
 from logitech_receiver.common import NamedInts
+from logitech_receiver.settings_templates import SettingsProtocol
 
 from solaar import configuration
 
@@ -215,7 +216,7 @@ def run(receivers, args, _find_receiver, find_device):
             dev.persister[setting.name] = setting._value
 
 
-def set(dev, setting: settings.Setting, args, save):
+def set(dev, setting: SettingsProtocol, args, save):
     if setting.kind == settings.Kind.TOGGLE:
         value = select_toggle(args.value_key, setting)
         args.value_key = value