diff --git a/aioesphomeapi/client.py b/aioesphomeapi/client.py
index 3724cc4..536a925 100644
--- a/aioesphomeapi/client.py
+++ b/aioesphomeapi/client.py
@@ -77,6 +77,7 @@ from .client_callbacks import (
     on_bluetooth_device_connection_response,
     on_bluetooth_gatt_notify_data_response,
     on_bluetooth_le_advertising_response,
+    on_bluetooth_message,
     on_home_assistant_service_response,
     on_state_msg,
     on_subscribe_home_assistant_state_response,
@@ -442,28 +443,6 @@ class APIClient:
             (HomeassistantServiceResponse,),
         )
 
-    def _filter_bluetooth_message(
-        self,
-        address: int,
-        handle: int,
-        msg: message.Message,
-    ) -> bool:
-        """Handle a Bluetooth message."""
-        if TYPE_CHECKING:
-            assert isinstance(
-                msg,
-                (
-                    BluetoothGATTErrorResponse,
-                    BluetoothGATTNotifyResponse,
-                    BluetoothGATTReadResponse,
-                    BluetoothGATTWriteResponse,
-                    BluetoothDeviceConnectionResponse,
-                ),
-            )
-        if type(msg) is BluetoothDeviceConnectionResponse:
-            return bool(msg.address == address)
-        return bool(msg.address == address and msg.handle == handle)
-
     async def _send_bluetooth_message_await_response(
         self,
         address: int,
@@ -476,7 +455,7 @@ class APIClient:
         ),
         timeout: float = 10.0,
     ) -> message.Message:
-        message_filter = partial(self._filter_bluetooth_message, address, handle)
+        message_filter = partial(on_bluetooth_message, address, handle)
         msg_types = (response_type, BluetoothGATTErrorResponse)
         [resp] = await self._get_connection().send_messages_await_response_complex(
             (request,),
diff --git a/aioesphomeapi/client_callbacks.pxd b/aioesphomeapi/client_callbacks.pxd
index 2611a2a..03a85e9 100644
--- a/aioesphomeapi/client_callbacks.pxd
+++ b/aioesphomeapi/client_callbacks.pxd
@@ -8,3 +8,5 @@ cdef object CameraImageResponse, CameraState
 cdef object HomeassistantServiceCall
 
 cdef object BluetoothLEAdvertisement
+
+cdef object BluetoothDeviceConnectionResponse
diff --git a/aioesphomeapi/client_callbacks.py b/aioesphomeapi/client_callbacks.py
index 7b250e3..4b378ae 100644
--- a/aioesphomeapi/client_callbacks.py
+++ b/aioesphomeapi/client_callbacks.py
@@ -1,3 +1,4 @@
+# pylint: disable=unidiomatic-typecheck
 from __future__ import annotations
 
 from asyncio import Future
@@ -8,7 +9,11 @@ from google.protobuf import message
 from .api_pb2 import (  # type: ignore
     BluetoothConnectionsFreeResponse,
     BluetoothDeviceConnectionResponse,
+    BluetoothGATTErrorResponse,
     BluetoothGATTNotifyDataResponse,
+    BluetoothGATTNotifyResponse,
+    BluetoothGATTReadResponse,
+    BluetoothGATTWriteResponse,
     BluetoothLEAdvertisementResponse,
     BluetoothLERawAdvertisement,
     BluetoothLERawAdvertisementsResponse,
@@ -111,3 +116,18 @@ def on_bluetooth_device_connection_response(
         # or we get an error.
         if not connect_future.done():
             connect_future.set_result(None)
+
+
+def on_bluetooth_message(
+    address: int,
+    handle: int,
+    msg: BluetoothGATTErrorResponse
+    | BluetoothGATTNotifyResponse
+    | BluetoothGATTReadResponse
+    | BluetoothGATTWriteResponse
+    | BluetoothDeviceConnectionResponse,
+) -> bool:
+    """Handle a Bluetooth message."""
+    if type(msg) is BluetoothDeviceConnectionResponse:
+        return bool(msg.address == address)
+    return bool(msg.address == address and msg.handle == handle)