diff --git a/src/aiovantage/_config_client/client.py b/src/aiovantage/_config_client/client.py
index 7a20dff..71e3fdd 100644
--- a/src/aiovantage/_config_client/client.py
+++ b/src/aiovantage/_config_client/client.py
@@ -131,7 +131,7 @@ async def raw_request(self, request: str, separator: str) -> str:
 
         return response
 
-    async def rpc_call(
+    async def rpc(
         self,
         interface_cls: type[Interface],
         method_cls: type[Method[Call, Return]],
diff --git a/src/aiovantage/_config_client/interfaces/configuration.py b/src/aiovantage/_config_client/interfaces/configuration.py
index 203326e..d662b05 100644
--- a/src/aiovantage/_config_client/interfaces/configuration.py
+++ b/src/aiovantage/_config_client/interfaces/configuration.py
@@ -1,5 +1,3 @@
-"""IConfiguration interfaces."""
-
 from collections.abc import AsyncIterator
 from contextlib import suppress
 from dataclasses import dataclass, field
@@ -13,13 +11,16 @@
 
 
 @dataclass
-class OpenFilter:
-    """IConfiguration.OpenFilter method definition."""
+class WrappedObject:
+    # Wildcard type that can be used to represent any object.
+    vid: int = field(metadata={"name": "VID", "type": "Attribute"})
+    obj: object = field(metadata={"type": "Wildcard"})
+
 
+@dataclass
+class OpenFilter:
     @dataclass
     class Params:
-        """Method parameters."""
-
         object_types: list[str] | None = field(
             default=None,
             metadata={"wrapper": "Objects", "name": "ObjectType", "type": "Element"},
@@ -32,25 +33,14 @@ class Params:
 
 @dataclass
 class GetFilterResults:
-    """IConfiguration.GetFilterResults method definition."""
-
     @dataclass
     class Params:
-        """Method parameters."""
-
         h_filter: int = field(metadata={"name": "hFilter"})
         count: int = 50
         whole_object: bool = True
 
-    @dataclass
-    class Object:
-        """Wildcard type that can be used to represent any object."""
-
-        vid: int = field(metadata={"name": "VID", "type": "Attribute"})
-        obj: object = field(metadata={"type": "Wildcard"})
-
     call: Params | None = field(default=None, metadata={"name": "call"})
-    result: list[Object] | None = field(
+    result: list[WrappedObject] | None = field(
         default_factory=list,
         metadata={"wrapper": "return", "name": "Object", "type": "Element"},
     )
@@ -58,29 +48,18 @@ class Object:
 
 @dataclass
 class CloseFilter:
-    """IConfiguration.CloseFilter method definition."""
-
     call: int | None = field(default=None, metadata={"name": "call"})
     result: bool | None = field(default=None, metadata={"name": "return"})
 
 
 @dataclass
 class GetObject:
-    """IConfiguration.GetObject method definition."""
-
-    @dataclass
-    class Object:
-        """Wildcard type that can be used to represent any object."""
-
-        vid: int = field(metadata={"name": "VID", "type": "Attribute"})
-        obj: object = field(metadata={"type": "Wildcard"})
-
     call: list[int] | None = field(
         default_factory=list,
         metadata={"wrapper": "call", "name": "VID", "type": "Element"},
     )
 
-    result: list[Object] | None = field(
+    result: list[WrappedObject] | None = field(
         default_factory=list,
         metadata={"wrapper": "return", "name": "Object", "type": "Element"},
     )
@@ -88,8 +67,6 @@ class Object:
 
 @dataclass(kw_only=True)
 class IConfiguration:
-    """IConfiguration interface."""
-
     open_filter: OpenFilter | None = None
     get_filter_results: GetFilterResults | None = None
     close_filter: CloseFilter | None = None
@@ -113,7 +90,7 @@ async def open_filter(
         Returns:
             The handle of the opened filter
         """
-        return await client.rpc_call(
+        return await client.rpc(
             IConfiguration,
             OpenFilter,
             OpenFilter.Params(object_types=list(object_types), xpath=xpath),
@@ -122,7 +99,7 @@ async def open_filter(
     @staticmethod
     async def get_filter_results(
         client: ConfigClient, h_filter: int, count: int = 50, whole_object: bool = True
-    ) -> list[GetFilterResults.Object]:
+    ) -> list[WrappedObject]:
         """Get results from a filter handle previously opened with open_filter.
 
         Args:
@@ -134,7 +111,7 @@ async def get_filter_results(
         Returns:
             A list of Vantage objects
         """
-        return await client.rpc_call(
+        return await client.rpc(
             IConfiguration, GetFilterResults, GetFilterResults.Params(h_filter)
         )
 
@@ -149,10 +126,10 @@ async def close_filter(client: ConfigClient, h_filter: int) -> bool:
         Returns:
             True if the filter was closed successfully, False otherwise
         """
-        return await client.rpc_call(IConfiguration, CloseFilter, h_filter)
+        return await client.rpc(IConfiguration, CloseFilter, h_filter)
 
     @staticmethod
-    async def get_object(client: ConfigClient, *vids: int) -> list[GetObject.Object]:
+    async def get_object(client: ConfigClient, *vids: int) -> list[WrappedObject]:
         """Get one or more Vantage objects by their VIDs.
 
         Args:
@@ -162,7 +139,7 @@ async def get_object(client: ConfigClient, *vids: int) -> list[GetObject.Object]
         Returns:
             A list of Vantage objects
         """
-        return await client.rpc_call(IConfiguration, GetObject, list(vids))
+        return await client.rpc(IConfiguration, GetObject, list(vids))
 
     # Convenience functions, not part of the interface
     @overload
diff --git a/src/aiovantage/_config_client/interfaces/introspection.py b/src/aiovantage/_config_client/interfaces/introspection.py
index 9148adf..a0fb347 100644
--- a/src/aiovantage/_config_client/interfaces/introspection.py
+++ b/src/aiovantage/_config_client/interfaces/introspection.py
@@ -1,5 +1,3 @@
-"""IIntrospection interface."""
-
 from dataclasses import dataclass, field
 
 from ..client import ConfigClient
@@ -7,12 +5,8 @@
 
 @dataclass
 class GetInterfaces:
-    """IIntrospection.GetInterfaces method definition."""
-
     @dataclass
     class Interface:
-        """Object interface definition."""
-
         name: str
         version: str
         iid: int = field(metadata={"name": "IID"})
@@ -26,12 +20,8 @@ class Interface:
 
 @dataclass
 class GetSysInfo:
-    """IIntrospection.GetSysInfo method definition."""
-
     @dataclass
     class SysInfo:
-        """SysInfo class."""
-
         master_number: int
         serial_number: int
 
@@ -43,12 +33,8 @@ class SysInfo:
 
 @dataclass
 class GetTypes:
-    """IIntrospection.GetTypes method definition."""
-
     @dataclass
     class Type:
-        """Object type definition."""
-
         name: str
         version: str
 
@@ -60,12 +46,8 @@ class Type:
 
 @dataclass
 class GetVersion:
-    """IIntrospection.GetVersion method definition."""
-
     @dataclass
     class Version:
-        """Method return value."""
-
         kernel: str | None = field(default=None, metadata={"name": "kernel"})
         rootfs: str | None = field(default=None, metadata={"name": "rootfs"})
         app: str | None = field(default=None, metadata={"name": "app"})
@@ -76,8 +58,6 @@ class Version:
 
 @dataclass(kw_only=True)
 class IIntrospection:
-    """IIntrospection interface."""
-
     get_interfaces: GetInterfaces | None = None
     get_sys_info: GetSysInfo | None = None
     get_types: GetTypes | None = None
@@ -97,7 +77,7 @@ async def get_interfaces(client: ConfigClient) -> list[GetInterfaces.Interface]:
         Returns:
             A list of interfaces.
         """
-        return await client.rpc_call(IIntrospection, GetInterfaces)
+        return await client.rpc(IIntrospection, GetInterfaces)
 
     @staticmethod
     async def get_sys_info(client: ConfigClient) -> GetSysInfo.SysInfo:
@@ -109,7 +89,7 @@ async def get_sys_info(client: ConfigClient) -> GetSysInfo.SysInfo:
         Returns:
             A system information object.
         """
-        return await client.rpc_call(IIntrospection, GetSysInfo)
+        return await client.rpc(IIntrospection, GetSysInfo)
 
     @staticmethod
     async def get_types(client: ConfigClient) -> list[GetTypes.Type]:
@@ -121,7 +101,7 @@ async def get_types(client: ConfigClient) -> list[GetTypes.Type]:
         Returns:
             A list of object types.
         """
-        return await client.rpc_call(IIntrospection, GetTypes)
+        return await client.rpc(IIntrospection, GetTypes)
 
     @staticmethod
     async def get_version(client: ConfigClient) -> GetVersion.Version:
@@ -133,4 +113,4 @@ async def get_version(client: ConfigClient) -> GetVersion.Version:
         Returns:
             A version information object.
         """
-        return await client.rpc_call(IIntrospection, GetVersion)
+        return await client.rpc(IIntrospection, GetVersion)
diff --git a/src/aiovantage/_config_client/interfaces/login.py b/src/aiovantage/_config_client/interfaces/login.py
index 660817e..7e528bc 100644
--- a/src/aiovantage/_config_client/interfaces/login.py
+++ b/src/aiovantage/_config_client/interfaces/login.py
@@ -1,5 +1,3 @@
-"""ILogin.Login method definition."""
-
 from dataclasses import dataclass, field
 
 from ..client import ConfigClient
@@ -7,12 +5,8 @@
 
 @dataclass
 class Login:
-    """ILogin.Login method definition."""
-
     @dataclass
     class Params:
-        """Method parameters."""
-
         user: str
         password: str
 
@@ -22,8 +16,6 @@ class Params:
 
 @dataclass(kw_only=True)
 class ILogin:
-    """ILogin interface."""
-
     login: Login | None = None
 
 
@@ -42,6 +34,6 @@ async def login(client: ConfigClient, user: str, password: str) -> bool:
         Returns:
             True if the login was successful, False otherwise
         """
-        return await client.rpc_call(
+        return await client.rpc(
             ILogin, Login, Login.Params(user=user, password=password)
         )
diff --git a/src/aiovantage/_controllers/blind_groups.py b/src/aiovantage/_controllers/blind_groups.py
index 9b0d0c5..6939f1e 100644
--- a/src/aiovantage/_controllers/blind_groups.py
+++ b/src/aiovantage/_controllers/blind_groups.py
@@ -2,10 +2,11 @@
 
 from .base import BaseController
 
+BlindGroupTypes = BlindGroup | SomfyRS485GroupChild | SomfyURTSI2GroupChild
+"""Types managed by the blind groups controller."""
 
-class BlindGroupsController(
-    BaseController[BlindGroup | SomfyRS485GroupChild | SomfyURTSI2GroupChild]
-):
+
+class BlindGroupsController(BaseController[BlindGroupTypes]):
     """Blind groups controller."""
 
     vantage_types = (
diff --git a/src/aiovantage/_controllers/blinds.py b/src/aiovantage/_controllers/blinds.py
index b86430f..85967ea 100644
--- a/src/aiovantage/_controllers/blinds.py
+++ b/src/aiovantage/_controllers/blinds.py
@@ -1,4 +1,5 @@
 from aiovantage.objects import (
+    BlindGroup,
     QISBlind,
     QubeBlind,
     RelayBlind,
@@ -7,6 +8,7 @@
 )
 
 from .base import BaseController
+from .query import QuerySet
 
 BlindTypes = (
     QISBlind | QubeBlind | RelayBlind | SomfyRS485ShadeChild | SomfyURTSI2ShadeChild
@@ -24,3 +26,7 @@ class BlindsController(BaseController[BlindTypes]):
         "Somfy.RS-485_Shade_CHILD",
         "Somfy.URTSI_2_Shade_CHILD",
     )
+
+    def in_blind_group(self, blind_group: BlindGroup) -> QuerySet[BlindTypes]:
+        """Return a queryset of all loads in the given blind group."""
+        return self.filter(lambda load: load.vid in blind_group.blind_table)
diff --git a/src/aiovantage/_controllers/load_groups.py b/src/aiovantage/_controllers/load_groups.py
index 41c90dc..d63d736 100644
--- a/src/aiovantage/_controllers/load_groups.py
+++ b/src/aiovantage/_controllers/load_groups.py
@@ -1,5 +1,4 @@
-from aiovantage._controllers.query import QuerySet
-from aiovantage.objects import Load, LoadGroup
+from aiovantage.objects import LoadGroup
 
 from .base import BaseController
 
@@ -8,9 +7,3 @@ class LoadGroupsController(BaseController[LoadGroup]):
     """Load groups controller."""
 
     vantage_types = ("LoadGroup",)
-
-    def loads(self, vid: int) -> QuerySet[Load]:
-        """Return a queryset of all loads in this load group."""
-        load_group = self[vid]
-
-        return self._vantage.loads.filter(lambda load: load.id in load_group.load_table)
diff --git a/src/aiovantage/_controllers/loads.py b/src/aiovantage/_controllers/loads.py
index 8fe4a2d..8b9da7d 100644
--- a/src/aiovantage/_controllers/loads.py
+++ b/src/aiovantage/_controllers/loads.py
@@ -1,7 +1,7 @@
-from aiovantage._controllers.query import QuerySet
-from aiovantage.objects import Load
+from aiovantage.objects import Load, LoadGroup
 
 from .base import BaseController
+from .query import QuerySet
 
 
 class LoadsController(BaseController[Load]):
@@ -33,3 +33,7 @@ def motors(self) -> QuerySet[Load]:
     def lights(self) -> QuerySet[Load]:
         """Return a queryset of all loads that are lights."""
         return self.filter(lambda load: load.is_light)
+
+    def in_load_group(self, load_group: LoadGroup) -> QuerySet[Load]:
+        """Return a queryset of all loads in the given load group."""
+        return self.filter(lambda load: load.vid in load_group.load_table)
diff --git a/src/aiovantage/_controllers/rgb_loads.py b/src/aiovantage/_controllers/rgb_loads.py
index 9c2c66a..bfa222e 100644
--- a/src/aiovantage/_controllers/rgb_loads.py
+++ b/src/aiovantage/_controllers/rgb_loads.py
@@ -1,7 +1,7 @@
-from aiovantage._controllers.query import QuerySet
 from aiovantage.objects import VantageDDGColorLoad, VantageDGColorLoad
 
 from .base import BaseController
+from .query import QuerySet
 
 RGBLoadTypes = VantageDDGColorLoad | VantageDGColorLoad
 """Types managed by the RGB loads controller."""
diff --git a/src/aiovantage/_object_interfaces/rgb_load.py b/src/aiovantage/_object_interfaces/rgb_load.py
index 5fef2eb..34ad850 100644
--- a/src/aiovantage/_object_interfaces/rgb_load.py
+++ b/src/aiovantage/_object_interfaces/rgb_load.py
@@ -441,29 +441,35 @@ async def get_transition_level(self) -> Decimal:
         return await self.invoke("RGBLoad.GetTransitionLevel")
 
     # Convenience functions, not part of the interface
-    async def get_rgb_color(self) -> tuple[int, ...]:
+    async def get_rgb_color(self) -> tuple[int, int, int]:
         """Get the RGB color of a load from the controller.
 
         Returns:
             The value of the RGB color as a tuple of (red, green, blue).
         """
-        return tuple([await self.get_rgb(chan) for chan in islice(self.RGBChannel, 3)])
+        return tuple[int, int, int](
+            [await self.get_rgb(chan) for chan in islice(self.RGBChannel, 3)]
+        )
 
-    async def get_rgbw_color(self) -> tuple[int, ...]:
+    async def get_rgbw_color(self) -> tuple[int, int, int, int]:
         """Get the RGBW color of a load from the controller.
 
         Returns:
             The value of the RGBW color as a tuple of (red, green, blue, white).
         """
-        return tuple([await self.get_rgbw(chan) for chan in self.RGBChannel])
+        return tuple[int, int, int, int](
+            [await self.get_rgbw(chan) for chan in self.RGBChannel]
+        )
 
-    async def get_hsl_color(self) -> tuple[int, ...]:
+    async def get_hsl_color(self) -> tuple[int, int, int]:
         """Get the HSL color of a load from the controller.
 
         Returns:
             The value of the HSL color as a tuple of (hue, saturation, lightness).
         """
-        return tuple([await self.get_hsl(attr) for attr in self.HSLAttribute])
+        return tuple[int, int, int](
+            [await self.get_hsl(attr) for attr in self.HSLAttribute]
+        )
 
     # Status updates for GetRGB, GetRGBW, and GetHSL arrive on multiple lines,
     # one line per channel/attribute. We always want to fetch a complete set of
diff --git a/src/aiovantage/controllers.py b/src/aiovantage/controllers.py
index f44d329..9b61853 100644
--- a/src/aiovantage/controllers.py
+++ b/src/aiovantage/controllers.py
@@ -31,7 +31,7 @@
 from ._controllers.areas import AreasController
 from ._controllers.back_boxes import BackBoxesController
 from ._controllers.base import BaseController
-from ._controllers.blind_groups import BlindGroupsController
+from ._controllers.blind_groups import BlindGroupsController, BlindGroupTypes
 from ._controllers.blinds import BlindsController, BlindTypes
 from ._controllers.buttons import ButtonsController
 from ._controllers.dry_contacts import DryContactsController
@@ -57,6 +57,7 @@
     "BackBoxesController",
     "BaseController",
     "BlindGroupsController",
+    "BlindGroupTypes",
     "BlindsController",
     "BlindTypes",
     "ButtonsController",