diff --git a/.flake8 b/.flake8
new file mode 100644
index 0000000..3127c2b
--- /dev/null
+++ b/.flake8
@@ -0,0 +1,3 @@
+[flake8]
+max-line-length = 88
+max-complexity = 7
\ No newline at end of file
diff --git a/.github/workflows/python-check.yml b/.github/workflows/python-check.yml
index 53a37b0..3d6f17c 100644
--- a/.github/workflows/python-check.yml
+++ b/.github/workflows/python-check.yml
@@ -28,9 +28,7 @@ jobs:
         python -m pip install -r requirements_dev.txt
     - name: Lint with flake8
       run: |
-        # stop the build if there are Python syntax errors or undefined names
-        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=88 --statistics
+        flake8 . --count --statistics
     - name: Type check with mypy
       run: |
         mypy pyhon/
diff --git a/.pylintrc b/.pylintrc
index f350fd7..5071b8a 100644
--- a/.pylintrc
+++ b/.pylintrc
@@ -1,7 +1,9 @@
 [MESSAGES CONTROL]
 
-disable=C,R
+disable=missing-docstring
 
 [FORMAT]
 
+max-args=6
+max-attributes=8
 max-line-length=88
diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 0000000..035f5c7
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1 @@
+include pyhon/py.typed
diff --git a/mypy.ini b/mypy.ini
index 9a76b78..52281b7 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -1,9 +1,24 @@
 [mypy]
-check_untyped_defs = True
-disallow_any_generics = True
-disallow_untyped_defs = True
-disallow_any_unimported = True
-no_implicit_optional = True
-warn_return_any = True
-show_error_codes = True
-warn_unused_ignores = True
+check_untyped_defs = true
+disallow_any_generics = true
+disallow_any_unimported = true
+disallow_incomplete_defs = true
+disallow_subclassing_any = true
+disallow_untyped_calls = true
+disallow_untyped_decorators = true
+disallow_untyped_defs = true
+disable_error_code = annotation-unchecked
+enable_error_code = ignore-without-code, redundant-self, truthy-iterable
+follow_imports = silent
+local_partial_types = true
+no_implicit_optional = true
+no_implicit_reexport = true
+show_error_codes = true
+strict_concatenate = false
+strict_equality = true
+warn_incomplete_stub = true
+warn_redundant_casts = true
+warn_return_any = true
+warn_unreachable = true
+warn_unused_configs = true
+warn_unused_ignores = true
diff --git a/pyhon/__main__.py b/pyhon/__main__.py
index c6460f5..9e9b25b 100755
--- a/pyhon/__main__.py
+++ b/pyhon/__main__.py
@@ -11,6 +11,7 @@ from typing import Tuple, Dict, Any
 if __name__ == "__main__":
     sys.path.insert(0, str(Path(__file__).parent.parent))
 
+# pylint: disable=wrong-import-position
 from pyhon import Hon, HonAPI, diagnose, printer
 
 _LOGGER = logging.getLogger(__name__)
@@ -91,11 +92,9 @@ async def main() -> None:
                 data = device.data.copy()
                 attr = "get" if args.get("all") else "pop"
                 print(
-                    printer.key_print(
-                        data["attributes"].__getattribute__(attr)("parameters")
-                    )
+                    printer.key_print(getattr(data["attributes"], attr)("parameters"))
                 )
-                print(printer.key_print(data.__getattribute__(attr)("appliance")))
+                print(printer.key_print(getattr(data, attr)("appliance")))
                 print(printer.key_print(data))
                 print(
                     printer.pretty_print(
diff --git a/pyhon/appliance.py b/pyhon/appliance.py
index 05b4b8d..996c463 100644
--- a/pyhon/appliance.py
+++ b/pyhon/appliance.py
@@ -3,7 +3,7 @@ import logging
 import re
 from datetime import datetime, timedelta
 from pathlib import Path
-from typing import Optional, Dict, Any, TYPE_CHECKING, List
+from typing import Optional, Dict, Any, TYPE_CHECKING, List, TypeVar, overload
 
 from pyhon import diagnose, exceptions
 from pyhon.appliances.base import ApplianceBase
@@ -20,7 +20,10 @@ if TYPE_CHECKING:
 
 _LOGGER = logging.getLogger(__name__)
 
+T = TypeVar("T")
 
+
+# pylint: disable=too-many-public-methods,too-many-instance-attributes
 class HonAppliance:
     _MINIMAL_UPDATE_INTERVAL = 5  # seconds
 
@@ -48,24 +51,35 @@ class HonAppliance:
         except ModuleNotFoundError:
             self._extra = None
 
+    def _get_nested_item(self, item: str) -> Any:
+        result: List[Any] | Dict[str, Any] = self.data
+        for key in item.split("."):
+            if all(k in "0123456789" for k in key) and isinstance(result, list):
+                result = result[int(key)]
+            elif isinstance(result, dict):
+                result = result[key]
+        return result
+
     def __getitem__(self, item: str) -> Any:
         if self._zone:
             item += f"Z{self._zone}"
         if "." in item:
-            result = self.data
-            for key in item.split("."):
-                if all(k in "0123456789" for k in key) and isinstance(result, list):
-                    result = result[int(key)]
-                else:
-                    result = result[key]
-            return result
+            return self._get_nested_item(item)
         if item in self.data:
             return self.data[item]
         if item in self.attributes["parameters"]:
             return self.attributes["parameters"][item].value
         return self.info[item]
 
-    def get(self, item: str, default: Any = None) -> Any:
+    @overload
+    def get(self, item: str, default: None = None) -> Any:
+        ...
+
+    @overload
+    def get(self, item: str, default: T) -> T:
+        ...
+
+    def get(self, item: str, default: Optional[T] = None) -> Any:
         try:
             return self[item]
         except (KeyError, IndexError):
@@ -188,12 +202,8 @@ class HonAppliance:
 
     async def update(self, force: bool = False) -> None:
         now = datetime.now()
-        if (
-            force
-            or not self._last_update
-            or self._last_update
-            < now - timedelta(seconds=self._MINIMAL_UPDATE_INTERVAL)
-        ):
+        min_age = now - timedelta(seconds=self._MINIMAL_UPDATE_INTERVAL)
+        if force or not self._last_update or self._last_update < min_age:
             self._last_update = now
             await self.load_attributes()
             self.sync_params_to_command("settings")
@@ -253,7 +263,9 @@ class HonAppliance:
         if not (command := self.commands.get(command_name)):
             return
         for key in command.setting_keys:
-            if (new := self.attributes.get("parameters", {}).get(key)) is None:
+            if (
+                new := self.attributes.get("parameters", {}).get(key)
+            ) is None or new.value == "":
                 continue
             setting = command.settings[key]
             try:
@@ -272,18 +284,23 @@ class HonAppliance:
         for command, data in self.commands.items():
             if command == main or target and command not in target:
                 continue
-            for name, parameter in data.parameters.items():
-                if base_value := base.parameters.get(name):
-                    if isinstance(base_value, HonParameterRange) and isinstance(
-                        parameter, HonParameterRange
-                    ):
-                        parameter.max = base_value.max
-                        parameter.min = base_value.min
-                        parameter.step = base_value.step
-                    elif isinstance(parameter, HonParameterRange):
-                        parameter.max = int(base_value.value)
-                        parameter.min = int(base_value.value)
-                        parameter.step = 1
-                    elif isinstance(parameter, HonParameterEnum):
-                        parameter.values = base_value.values
-                    parameter.value = base_value.value
+
+            for name, target_param in data.parameters.items():
+                if not (base_param := base.parameters.get(name)):
+                    return
+                self.sync_parameter(base_param, target_param)
+
+    def sync_parameter(self, main: Parameter, target: Parameter) -> None:
+        if isinstance(main, HonParameterRange) and isinstance(
+            target, HonParameterRange
+        ):
+            target.max = main.max
+            target.min = main.min
+            target.step = main.step
+        elif isinstance(target, HonParameterRange):
+            target.max = int(main.value)
+            target.min = int(main.value)
+            target.step = 1
+        elif isinstance(target, HonParameterEnum):
+            target.values = main.values
+        target.value = main.value
diff --git a/pyhon/appliances/dw.py b/pyhon/appliances/dw.py
index 8c08da3..5d0465d 100644
--- a/pyhon/appliances/dw.py
+++ b/pyhon/appliances/dw.py
@@ -1,3 +1,4 @@
+# pylint: disable=duplicate-code
 from typing import Any, Dict
 
 from pyhon.appliances.base import ApplianceBase
diff --git a/pyhon/appliances/ref.py b/pyhon/appliances/ref.py
index 57facb3..787dd84 100644
--- a/pyhon/appliances/ref.py
+++ b/pyhon/appliances/ref.py
@@ -10,12 +10,12 @@ class Appliance(ApplianceBase):
             data["modeZ1"] = "holiday"
         elif data["parameters"]["intelligenceMode"] == "1":
             data["modeZ1"] = "auto_set"
-        elif data["parameters"]["quickModeZ1"] == "1":
+        elif data["parameters"].get("quickModeZ1") == "1":
             data["modeZ1"] = "super_cool"
         else:
             data["modeZ1"] = "no_mode"
 
-        if data["parameters"]["quickModeZ2"] == "1":
+        if data["parameters"].get("quickModeZ2") == "1":
             data["modeZ2"] = "super_freeze"
         elif data["parameters"]["intelligenceMode"] == "1":
             data["modeZ2"] = "auto_set"
diff --git a/pyhon/appliances/td.py b/pyhon/appliances/td.py
index 1b623f8..1f33044 100644
--- a/pyhon/appliances/td.py
+++ b/pyhon/appliances/td.py
@@ -1,3 +1,4 @@
+# pylint: disable=duplicate-code
 from typing import Any, Dict
 
 from pyhon.appliances.base import ApplianceBase
diff --git a/pyhon/appliances/wd.py b/pyhon/appliances/wd.py
index e2a274b..6ae0388 100644
--- a/pyhon/appliances/wd.py
+++ b/pyhon/appliances/wd.py
@@ -1,3 +1,4 @@
+# pylint: disable=duplicate-code
 from typing import Dict, Any
 
 from pyhon.appliances.base import ApplianceBase
diff --git a/pyhon/appliances/wm.py b/pyhon/appliances/wm.py
index 1fc95c0..27572fa 100644
--- a/pyhon/appliances/wm.py
+++ b/pyhon/appliances/wm.py
@@ -1,3 +1,4 @@
+# pylint: disable=duplicate-code
 from typing import Any, Dict
 
 from pyhon.appliances.base import ApplianceBase
diff --git a/pyhon/command_loader.py b/pyhon/command_loader.py
index 127dd08..94b0277 100644
--- a/pyhon/command_loader.py
+++ b/pyhon/command_loader.py
@@ -17,12 +17,12 @@ class HonCommandLoader:
     """Loads and parses hOn command data"""
 
     def __init__(self, api: "HonAPI", appliance: "HonAppliance") -> None:
+        self._api: "HonAPI" = api
+        self._appliance: "HonAppliance" = appliance
         self._api_commands: Dict[str, Any] = {}
         self._favourites: List[Dict[str, Any]] = []
         self._command_history: List[Dict[str, Any]] = []
         self._commands: Dict[str, HonCommand] = {}
-        self._api: "HonAPI" = api
-        self._appliance: "HonAppliance" = appliance
         self._appliance_data: Dict[str, Any] = {}
         self._additional_data: Dict[str, Any] = {}
 
@@ -184,22 +184,44 @@ class HonCommandLoader:
     def _add_favourites(self) -> None:
         """Patch program categories with favourites"""
         for favourite in self._favourites:
-            name = favourite.get("favouriteName", {})
-            command = favourite.get("command", {})
-            command_name = command.get("commandName", "")
-            program_name = self._clean_name(command.get("programName", ""))
-            base: HonCommand = copy(
-                self.commands[command_name].categories[program_name]
-            )
-            for data in command.values():
-                if isinstance(data, str):
+            name, command_name, base = self._get_favourite_info(favourite)
+            if not base:
+                continue
+            base_command: HonCommand = copy(base)
+            self._update_base_command_with_data(base_command, favourite)
+            self._update_base_command_with_favourite(base_command)
+            self._update_program_categories(command_name, name, base_command)
+
+    def _get_favourite_info(
+        self, favourite: Dict[str, Any]
+    ) -> tuple[str, str, HonCommand | None]:
+        name: str = favourite.get("favouriteName", {})
+        command = favourite.get("command", {})
+        command_name: str = command.get("commandName", "")
+        program_name = self._clean_name(command.get("programName", ""))
+        base_command = self.commands[command_name].categories.get(program_name)
+        return name, command_name, base_command
+
+    def _update_base_command_with_data(
+        self, base_command: HonCommand, command: Dict[str, Any]
+    ) -> None:
+        for data in command.values():
+            if isinstance(data, str):
+                continue
+            for key, value in data.items():
+                if not (parameter := base_command.parameters.get(key)):
                     continue
-                for key, value in data.items():
-                    if parameter := base.parameters.get(key):
-                        with suppress(ValueError):
-                            parameter.value = value
-            extra_param = HonParameterFixed("favourite", {"fixedValue": "1"}, "custom")
-            base.parameters.update(favourite=extra_param)
-            if isinstance(program := base.parameters["program"], HonParameterProgram):
-                program.set_value(name)
-            self.commands[command_name].categories[name] = base
+                with suppress(ValueError):
+                    parameter.value = value
+
+    def _update_base_command_with_favourite(self, base_command: HonCommand) -> None:
+        extra_param = HonParameterFixed("favourite", {"fixedValue": "1"}, "custom")
+        base_command.parameters.update(favourite=extra_param)
+
+    def _update_program_categories(
+        self, command_name: str, name: str, base_command: HonCommand
+    ) -> None:
+        program = base_command.parameters["program"]
+        if isinstance(program, HonParameterProgram):
+            program.set_value(name)
+        self.commands[command_name].categories[name] = base_command
diff --git a/pyhon/commands.py b/pyhon/commands.py
index cea218b..b671e55 100644
--- a/pyhon/commands.py
+++ b/pyhon/commands.py
@@ -27,17 +27,16 @@ class HonCommand:
         categories: Optional[Dict[str, "HonCommand"]] = None,
         category_name: str = "",
     ):
-        self._api: Optional[HonAPI] = appliance.api
-        self._appliance: "HonAppliance" = appliance
         self._name: str = name
+        self._api: Optional[HonAPI] = None
+        self._appliance: "HonAppliance" = appliance
         self._categories: Optional[Dict[str, "HonCommand"]] = categories
         self._category_name: str = category_name
-        self._description: str = attributes.pop("description", "")
-        self._protocol_type: str = attributes.pop("protocolType", "")
-        self._parameters: Dict[str, HonParameter] = {}
+        self._parameters: Dict[str, Parameter] = {}
         self._data: Dict[str, Any] = {}
-        self._available_settings: Dict[str, HonParameter] = {}
         self._rules: List[HonRuleSet] = []
+        attributes.pop("description", "")
+        attributes.pop("protocolType", "")
         self._load_parameters(attributes)
 
     def __repr__(self) -> str:
@@ -49,6 +48,8 @@ class HonCommand:
 
     @property
     def api(self) -> "HonAPI":
+        if self._api is None and self._appliance:
+            self._api = self._appliance.api
         if self._api is None:
             raise exceptions.NoAuthenticationException("Missing hOn login")
         return self._api
diff --git a/pyhon/connection/api.py b/pyhon/connection/api.py
index 364bbb6..61bfe1f 100644
--- a/pyhon/connection/api.py
+++ b/pyhon/connection/api.py
@@ -278,10 +278,12 @@ class TestAPI(HonAPI):
     async def load_appliances(self) -> List[Dict[str, Any]]:
         result = []
         for appliance in self._path.glob("*/"):
-            with open(
-                appliance / "appliance_data.json", "r", encoding="utf-8"
-            ) as json_file:
-                result.append(json.loads(json_file.read()))
+            file = appliance / "appliance_data.json"
+            with open(file, "r", encoding="utf-8") as json_file:
+                try:
+                    result.append(json.loads(json_file.read()))
+                except json.decoder.JSONDecodeError as error:
+                    _LOGGER.error("%s - %s", str(file), error)
         return result
 
     async def load_commands(self, appliance: HonAppliance) -> Dict[str, Any]:
@@ -318,4 +320,5 @@ class TestAPI(HonAPI):
         parameters: Dict[str, Any],
         ancillary_parameters: Dict[str, Any],
     ) -> bool:
+        _LOGGER.info("%s - %s", str(parameters), str(ancillary_parameters))
         return True
diff --git a/pyhon/connection/auth.py b/pyhon/connection/auth.py
index 2629dfb..cf75410 100644
--- a/pyhon/connection/auth.py
+++ b/pyhon/connection/auth.py
@@ -30,6 +30,14 @@ class HonLoginData:
     loaded: Optional[Dict[str, Any]] = None
 
 
+@dataclass
+class HonAuthData:
+    access_token: str = ""
+    refresh_token: str = ""
+    cognito_token: str = ""
+    id_token: str = ""
+
+
 class HonAuth:
     _TOKEN_EXPIRES_AFTER_HOURS = 8
     _TOKEN_EXPIRE_WARNING_HOURS = 7
@@ -46,28 +54,25 @@ class HonAuth:
         self._login_data = HonLoginData()
         self._login_data.email = email
         self._login_data.password = password
-        self._access_token = ""
-        self._refresh_token = ""
-        self._cognito_token = ""
-        self._id_token = ""
         self._device = device
         self._expires: datetime = datetime.utcnow()
+        self._auth = HonAuthData()
 
     @property
     def cognito_token(self) -> str:
-        return self._cognito_token
+        return self._auth.cognito_token
 
     @property
     def id_token(self) -> str:
-        return self._id_token
+        return self._auth.id_token
 
     @property
     def access_token(self) -> str:
-        return self._access_token
+        return self._auth.access_token
 
     @property
     def refresh_token(self) -> str:
-        return self._refresh_token
+        return self._auth.refresh_token
 
     def _check_token_expiration(self, hours: int) -> bool:
         return datetime.utcnow() >= self._expires + timedelta(hours=hours)
@@ -192,12 +197,12 @@ class HonAuth:
 
     def _parse_token_data(self, text: str) -> bool:
         if access_token := re.findall("access_token=(.*?)&", text):
-            self._access_token = access_token[0]
+            self._auth.access_token = access_token[0]
         if refresh_token := re.findall("refresh_token=(.*?)&", text):
-            self._refresh_token = refresh_token[0]
+            self._auth.refresh_token = refresh_token[0]
         if id_token := re.findall("id_token=(.*?)&", text):
-            self._id_token = id_token[0]
-        return True if access_token and refresh_token and id_token else False
+            self._auth.id_token = id_token[0]
+        return bool(access_token and refresh_token and id_token)
 
     async def _get_token(self, url: str) -> bool:
         async with self._request.get(url) as response:
@@ -229,7 +234,7 @@ class HonAuth:
         return True
 
     async def _api_auth(self) -> bool:
-        post_headers = {"id-token": self._id_token}
+        post_headers = {"id-token": self._auth.id_token}
         data = self._device.get()
         async with self._request.post(
             f"{const.API_URL}/auth/v1/login", headers=post_headers, json=data
@@ -239,8 +244,8 @@ class HonAuth:
             except json.JSONDecodeError:
                 await self._error_logger(response)
                 return False
-            self._cognito_token = json_data.get("cognitoUser", {}).get("Token", "")
-            if not self._cognito_token:
+            self._auth.cognito_token = json_data.get("cognitoUser", {}).get("Token", "")
+            if not self._auth.cognito_token:
                 _LOGGER.error(json_data)
                 raise exceptions.HonAuthenticationError()
         return True
@@ -262,7 +267,7 @@ class HonAuth:
     async def refresh(self) -> bool:
         params = {
             "client_id": const.CLIENT_ID,
-            "refresh_token": self._refresh_token,
+            "refresh_token": self._auth.refresh_token,
             "grant_type": "refresh_token",
         }
         async with self._request.post(
@@ -273,14 +278,14 @@ class HonAuth:
                 return False
             data = await response.json()
         self._expires = datetime.utcnow()
-        self._id_token = data["id_token"]
-        self._access_token = data["access_token"]
+        self._auth.id_token = data["id_token"]
+        self._auth.access_token = data["access_token"]
         return await self._api_auth()
 
     def clear(self) -> None:
         self._session.cookie_jar.clear_domain(const.AUTH_API.split("/")[-2])
         self._request.called_urls = []
-        self._cognito_token = ""
-        self._id_token = ""
-        self._access_token = ""
-        self._refresh_token = ""
+        self._auth.cognito_token = ""
+        self._auth.id_token = ""
+        self._auth.access_token = ""
+        self._auth.refresh_token = ""
diff --git a/pyhon/connection/handler/base.py b/pyhon/connection/handler/base.py
index 9e5c77b..6e169e1 100644
--- a/pyhon/connection/handler/base.py
+++ b/pyhon/connection/handler/base.py
@@ -60,7 +60,8 @@ class ConnectionHandler:
         if self._session is None:
             raise exceptions.NoSessionException()
         response: aiohttp.ClientResponse
-        async with self._intercept(self._session.get, *args, **kwargs) as response:  # type: ignore[arg-type]
+        args = self._session.get, *args
+        async with self._intercept(*args, **kwargs) as response:
             yield response
 
     @asynccontextmanager
@@ -70,7 +71,8 @@ class ConnectionHandler:
         if self._session is None:
             raise exceptions.NoSessionException()
         response: aiohttp.ClientResponse
-        async with self._intercept(self._session.post, *args, **kwargs) as response:  # type: ignore[arg-type]
+        args = self._session.post, *args
+        async with self._intercept(*args, **kwargs) as response:
             yield response
 
     async def close(self) -> None:
diff --git a/pyhon/const.py b/pyhon/const.py
index 49af0bf..4f97435 100644
--- a/pyhon/const.py
+++ b/pyhon/const.py
@@ -2,8 +2,10 @@ AUTH_API = "https://account2.hon-smarthome.com"
 API_URL = "https://api-iot.he.services"
 API_KEY = "GRCqFhC6Gk@ikWXm1RmnSmX1cm,MxY-configuration"
 APP = "hon"
-# All seen id's (different accounts, different devices) are the same, so I guess this hash is static
-CLIENT_ID = "3MVG9QDx8IX8nP5T2Ha8ofvlmjLZl5L_gvfbT9.HJvpHGKoAS_dcMN8LYpTSYeVFCraUnV.2Ag1Ki7m4znVO6"
+CLIENT_ID = (
+    "3MVG9QDx8IX8nP5T2Ha8ofvlmjLZl5L_gvfbT9."
+    "HJvpHGKoAS_dcMN8LYpTSYeVFCraUnV.2Ag1Ki7m4znVO6"
+)
 APP_VERSION = "2.1.2"
 OS_VERSION = 31
 OS = "android"
diff --git a/pyhon/hon.py b/pyhon/hon.py
index b207b87..d6c73e2 100644
--- a/pyhon/hon.py
+++ b/pyhon/hon.py
@@ -7,9 +7,10 @@ from typing import List, Optional, Dict, Any, Type
 from aiohttp import ClientSession
 from typing_extensions import Self
 
-from pyhon import HonAPI, exceptions
 from pyhon.appliance import HonAppliance
+from pyhon.connection.api import HonAPI
 from pyhon.connection.api import TestAPI
+from pyhon.exceptions import NoAuthenticationException
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -43,7 +44,7 @@ class Hon:
     @property
     def api(self) -> HonAPI:
         if self._api is None:
-            raise exceptions.NoAuthenticationException
+            raise NoAuthenticationException
         return self._api
 
     @property
diff --git a/pyhon/parameter/program.py b/pyhon/parameter/program.py
index 4ed2004..83b843f 100644
--- a/pyhon/parameter/program.py
+++ b/pyhon/parameter/program.py
@@ -41,13 +41,15 @@ class HonParameterProgram(HonParameterEnum):
 
     @property
     def ids(self) -> Dict[int, str]:
-        values = {
-            int(p.parameters["prCode"].value): n
-            for i, (n, p) in enumerate(self._programs.items())
-            if "iot_" not in n
-            and p.parameters.get("prCode")
-            and not ((fav := p.parameters.get("favourite")) and fav.value == "1")
-        }
+        values: Dict[int, str] = {}
+        for name, parameter in self._programs.items():
+            if "iot_" in name:
+                continue
+            if parameter.parameters.get("prCode"):
+                continue
+            if (fav := parameter.parameters.get("favourite")) and fav.value == "1":
+                continue
+            values[int(parameter.parameters["prCode"].value)] = name
         return dict(sorted(values.items()))
 
     def set_value(self, value: str) -> None:
diff --git a/pyhon/parameter/range.py b/pyhon/parameter/range.py
index c51642c..6eef53e 100644
--- a/pyhon/parameter/range.py
+++ b/pyhon/parameter/range.py
@@ -16,9 +16,9 @@ class HonParameterRange(HonParameter):
 
     def _set_attributes(self) -> None:
         super()._set_attributes()
-        self._min = str_to_float(self._attributes["minimumValue"])
-        self._max = str_to_float(self._attributes["maximumValue"])
-        self._step = str_to_float(self._attributes["incrementValue"])
+        self._min = str_to_float(self._attributes.get("minimumValue", 0))
+        self._max = str_to_float(self._attributes.get("maximumValue", 0))
+        self._step = str_to_float(self._attributes.get("incrementValue", 0))
         self._default = str_to_float(self._attributes.get("defaultValue", self.min))
         self._value = self._default
 
@@ -64,9 +64,8 @@ class HonParameterRange(HonParameter):
             self._value = value
             self.check_trigger(value)
         else:
-            raise ValueError(
-                f"Allowed: min {self.min} max {self.max} step {self.step} But was: {value}"
-            )
+            allowed = f"min {self.min} max {self.max} step {self.step}"
+            raise ValueError(f"Allowed: {allowed} But was: {value}")
 
     @property
     def values(self) -> List[str]:
diff --git a/pyhon/printer.py b/pyhon/printer.py
index 395c531..9c84815 100644
--- a/pyhon/printer.py
+++ b/pyhon/printer.py
@@ -29,33 +29,26 @@ def pretty_print(
     whitespace: str = "  ",
 ) -> str:
     result = ""
+    space = whitespace * intend
+    if isinstance(data, (dict, list)) and key:
+        result += f"{space}{'- ' if is_list else ''}{key}:\n"
+        intend += 1
     if isinstance(data, list):
-        if key:
-            result += f"{whitespace * intend}{'- ' if is_list else ''}{key}:\n"
-            intend += 1
         for i, value in enumerate(data):
             result += pretty_print(
                 value, intend=intend, is_list=True, whitespace=whitespace
             )
     elif isinstance(data, dict):
-        if key:
-            result += f"{whitespace * intend}{'- ' if is_list else ''}{key}:\n"
-            intend += 1
-        for i, (key, value) in enumerate(sorted(data.items())):
-            if is_list and not i:
-                result += pretty_print(
-                    value, key=key, intend=intend, is_list=True, whitespace=whitespace
-                )
-            elif is_list:
-                result += pretty_print(
-                    value, key=key, intend=intend + 1, whitespace=whitespace
-                )
-            else:
-                result += pretty_print(
-                    value, key=key, intend=intend, whitespace=whitespace
-                )
+        for i, (list_key, value) in enumerate(sorted(data.items())):
+            result += pretty_print(
+                value,
+                key=list_key,
+                intend=intend + (is_list if i else 0),
+                is_list=is_list and not i,
+                whitespace=whitespace,
+            )
     else:
-        result += f"{whitespace * intend}{'- ' if is_list else ''}{key}{': ' if key else ''}{data}\n"
+        result += f"{space}{'- ' if is_list else ''}{key}{': ' if key else ''}{data}\n"
     return result
 
 
diff --git a/pyhon/py.typed b/pyhon/py.typed
new file mode 100644
index 0000000..e69de29
diff --git a/pyhon/rules.py b/pyhon/rules.py
index eb580e1..57d6de5 100644
--- a/pyhon/rules.py
+++ b/pyhon/rules.py
@@ -3,6 +3,7 @@ from typing import List, Dict, TYPE_CHECKING, Any, Optional
 
 from pyhon.parameter.enum import HonParameterEnum
 from pyhon.parameter.range import HonParameterRange
+from pyhon.typedefs import Parameter
 
 if TYPE_CHECKING:
     from pyhon.commands import HonCommand
@@ -24,6 +25,10 @@ class HonRuleSet:
         self._rules: Dict[str, List[HonRule]] = {}
         self._parse_rule(rule)
 
+    @property
+    def rules(self) -> Dict[str, List[HonRule]]:
+        return self._rules
+
     def _parse_rule(self, rule: Dict[str, Any]) -> None:
         for param_key, params in rule.items():
             param_key = self._command.appliance.options.get(param_key, param_key)
@@ -83,28 +88,42 @@ class HonRuleSet:
             for rule in rules:
                 self._rules.setdefault(key, []).append(rule)
 
+    def _extra_rules_matches(self, rule: HonRule) -> bool:
+        if rule.extras:
+            for key, value in rule.extras.items():
+                if not self._command.parameters.get(key):
+                    return False
+                if str(self._command.parameters.get(key)) != str(value):
+                    return False
+        return True
+
+    def _apply_fixed(self, param: Parameter, value: str | float) -> None:
+        if isinstance(param, HonParameterEnum) and set(param.values) != {str(value)}:
+            param.values = [str(value)]
+            param.value = str(value)
+        elif isinstance(param, HonParameterRange):
+            param.value = float(value)
+            return
+        param.value = str(value)
+
+    def _apply_enum(self, param: Parameter, rule: HonRule) -> None:
+        if not isinstance(param, HonParameterEnum):
+            return
+        if enum_values := rule.param_data.get("enumValues"):
+            param.values = enum_values.split("|")
+        if default_value := rule.param_data.get("defaultValue"):
+            param.value = default_value
+
     def _add_trigger(self, parameter: "HonParameter", data: HonRule) -> None:
         def apply(rule: HonRule) -> None:
-            if rule.extras is not None:
-                for key, value in rule.extras.items():
-                    if str(self._command.parameters.get(key)) != str(value):
-                        return
-            if param := self._command.parameters.get(rule.param_key):
-                if value := rule.param_data.get("fixedValue", ""):
-                    if isinstance(param, HonParameterEnum) and set(param.values) != {
-                        str(value)
-                    }:
-                        param.values = [str(value)]
-                    elif isinstance(param, HonParameterRange):
-                        param.value = float(value)
-                        return
-                    param.value = str(value)
-                elif rule.param_data.get("typology") == "enum":
-                    if isinstance(param, HonParameterEnum):
-                        if enum_values := rule.param_data.get("enumValues"):
-                            param.values = enum_values.split("|")
-                        if default_value := rule.param_data.get("defaultValue"):
-                            param.value = default_value
+            if not self._extra_rules_matches(rule):
+                return
+            if not (param := self._command.parameters.get(rule.param_key)):
+                return
+            if fixed_value := rule.param_data.get("fixedValue", ""):
+                self._apply_fixed(param, fixed_value)
+            elif rule.param_data.get("typology") == "enum":
+                self._apply_enum(param, rule)
 
         parameter.add_trigger(data.trigger_value, apply, data)
 
diff --git a/pyhon/typedefs.py b/pyhon/typedefs.py
index 2a22319..51a137b 100644
--- a/pyhon/typedefs.py
+++ b/pyhon/typedefs.py
@@ -11,7 +11,7 @@ if TYPE_CHECKING:
     from pyhon.parameter.range import HonParameterRange
 
 
-class Callback(Protocol):
+class Callback(Protocol):  # pylint: disable=too-few-public-methods
     def __call__(
         self, url: str | URL, *args: Any, **kwargs: Any
     ) -> aiohttp.client._RequestContextManager:
diff --git a/requirements.txt b/requirements.txt
index 5c21de6..1e9d351 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-aiohttp==3.8.4
-yarl==1.8.2
+aiohttp==3.8.5
+yarl==1.9.2
 typing-extensions==4.7.1
diff --git a/requirements_dev.txt b/requirements_dev.txt
index 9bb012e..a28b33e 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,4 +1,4 @@
-black==23.3.0
+black==23.7.0
 flake8==6.0.0
-mypy==1.2.0
-pylint==2.17.2
+mypy==1.4.1
+pylint==2.17.4
diff --git a/setup.py b/setup.py
index 5ee66ab..2735f63 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@ with open("README.md", "r", encoding="utf-8") as f:
 
 setup(
     name="pyhOn",
-    version="0.14.9",
+    version="0.15.5",
     author="Andre Basche",
     description="Control hOn devices with python",
     long_description=long_description,
@@ -21,7 +21,7 @@ setup(
     packages=find_packages(),
     include_package_data=True,
     python_requires=">=3.10",
-    install_requires=["aiohttp==3.8.4", "typing-extensions==4.7.1"],
+    install_requires=["aiohttp==3.8.5", "typing-extensions==4.7.1"],
     classifiers=[
         "Development Status :: 4 - Beta",
         "Environment :: Console",