fix type hints

tests/components/vizio/test_media_player.py

@@ -1,7 +1,7 @@
 """Tests for Vizio config flow."""
 from datetime import timedelta
 import logging
-from typing import Any, Dict
+from typing import Any, Dict, Optional
 from unittest.mock import call
 
 from asynctest import patch
@@ -83,7 +83,7 @@
 
 
 async def _test_setup(
-    hass: HomeAssistantType, ha_device_class: str, vizio_power_state: bool
+    hass: HomeAssistantType, ha_device_class: str, vizio_power_state: Optional[bool]
 ) -> None:
     """Test Vizio Device entity setup."""
     if vizio_power_state:
@@ -141,7 +141,7 @@ async def _test_setup(
 async def _test_setup_with_apps(
     hass: HomeAssistantType,
     device_config: Dict[str, Any],
-    app: str,
+    app: Optional[str],
     app_config: Dict[str, Any],
 ) -> None:
     """Test Vizio Device with apps entity setup."""
@@ -227,7 +227,7 @@ async def _test_service(
     hass: HomeAssistantType,
     vizio_func_name: str,
     ha_service_name: str,
-    additional_service_data: dict,
+    additional_service_data: Optional[Dict[str, Any]],
     *args,
     **kwargs,
 ) -> None:
@@ -368,8 +368,8 @@ async def test_options_update(
 
 async def _test_update_availability_switch(
     hass: HomeAssistantType,
-    initial_power_state: bool,
-    final_power_state: bool,
+    initial_power_state: Optional[bool],
+    final_power_state: Optional[bool],
     caplog: pytest.fixture,
 ) -> None:
     now = dt_util.utcnow()