diff --git a/homeassistant/components/aemet/__init__.py b/homeassistant/components/aemet/__init__.py
index e958195b215..7a20e77f0b0 100644
--- a/homeassistant/components/aemet/__init__.py
+++ b/homeassistant/components/aemet/__init__.py
@@ -19,7 +19,7 @@ from .weather_update_coordinator import WeatherUpdateCoordinator
 _LOGGER = logging.getLogger(__name__)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up AEMET OpenData as config entry."""
     name = entry.data[CONF_NAME]
     api_key = entry.data[CONF_API_KEY]
diff --git a/homeassistant/components/airnow/__init__.py b/homeassistant/components/airnow/__init__.py
index 0b27a4a9dfd..52ee1a0e8fc 100644
--- a/homeassistant/components/airnow/__init__.py
+++ b/homeassistant/components/airnow/__init__.py
@@ -36,7 +36,7 @@ _LOGGER = logging.getLogger(__name__)
 PLATFORMS = ["sensor"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up AirNow from a config entry."""
     api_key = entry.data[CONF_API_KEY]
     latitude = entry.data[CONF_LATITUDE]
diff --git a/homeassistant/components/almond/__init__.py b/homeassistant/components/almond/__init__.py
index b8e13cc1dee..5d3b5a86942 100644
--- a/homeassistant/components/almond/__init__.py
+++ b/homeassistant/components/almond/__init__.py
@@ -101,7 +101,7 @@ async def async_setup(hass, config):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Almond config entry."""
     websession = aiohttp_client.async_get_clientsession(hass)
 
diff --git a/homeassistant/components/arcam_fmj/__init__.py b/homeassistant/components/arcam_fmj/__init__.py
index 3b49008cb5f..905e31c798b 100644
--- a/homeassistant/components/arcam_fmj/__init__.py
+++ b/homeassistant/components/arcam_fmj/__init__.py
@@ -51,7 +51,7 @@ async def async_setup(hass: HomeAssistant, config: ConfigType):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up config entry."""
     entries = hass.data[DOMAIN_DATA_ENTRIES]
     tasks = hass.data[DOMAIN_DATA_TASKS]
diff --git a/homeassistant/components/asuswrt/__init__.py b/homeassistant/components/asuswrt/__init__.py
index ad3cea1106b..af7f3b05e33 100644
--- a/homeassistant/components/asuswrt/__init__.py
+++ b/homeassistant/components/asuswrt/__init__.py
@@ -111,7 +111,7 @@ async def async_setup(hass, config):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up AsusWrt platform."""
 
     # import options from yaml if empty
diff --git a/homeassistant/components/atag/__init__.py b/homeassistant/components/atag/__init__.py
index e6347563bc2..af5eff67f57 100644
--- a/homeassistant/components/atag/__init__.py
+++ b/homeassistant/components/atag/__init__.py
@@ -24,7 +24,7 @@ DOMAIN = "atag"
 PLATFORMS = [CLIMATE, WATER_HEATER, SENSOR]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Atag integration from a config entry."""
 
     async def _async_update_data():
diff --git a/homeassistant/components/aurora/__init__.py b/homeassistant/components/aurora/__init__.py
index e8dc98a18b7..faccefda500 100644
--- a/homeassistant/components/aurora/__init__.py
+++ b/homeassistant/components/aurora/__init__.py
@@ -35,7 +35,7 @@ _LOGGER = logging.getLogger(__name__)
 PLATFORMS = ["binary_sensor", "sensor"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Aurora from a config entry."""
 
     conf = entry.data
diff --git a/homeassistant/components/blebox/__init__.py b/homeassistant/components/blebox/__init__.py
index fe2265ed78d..33d09f460db 100644
--- a/homeassistant/components/blebox/__init__.py
+++ b/homeassistant/components/blebox/__init__.py
@@ -21,7 +21,7 @@ PLATFORMS = ["cover", "sensor", "switch", "air_quality", "light", "climate"]
 PARALLEL_UPDATES = 0
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up BleBox devices from a config entry."""
 
     websession = async_get_clientsession(hass)
diff --git a/homeassistant/components/bmw_connected_drive/__init__.py b/homeassistant/components/bmw_connected_drive/__init__.py
index 79461082acd..038a8696818 100644
--- a/homeassistant/components/bmw_connected_drive/__init__.py
+++ b/homeassistant/components/bmw_connected_drive/__init__.py
@@ -101,7 +101,7 @@ def _async_migrate_options_from_data_if_missing(hass, entry):
         hass.config_entries.async_update_entry(entry, data=data, options=options)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up BMW Connected Drive from a config entry."""
     hass.data.setdefault(DOMAIN, {})
     hass.data[DOMAIN].setdefault(DATA_ENTRIES, {})
diff --git a/homeassistant/components/cert_expiry/__init__.py b/homeassistant/components/cert_expiry/__init__.py
index f91eaab49b6..c4381b65c49 100644
--- a/homeassistant/components/cert_expiry/__init__.py
+++ b/homeassistant/components/cert_expiry/__init__.py
@@ -20,7 +20,7 @@ SCAN_INTERVAL = timedelta(hours=12)
 PLATFORMS = ["sensor"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Load the saved entities."""
     host = entry.data[CONF_HOST]
     port = entry.data[CONF_PORT]
diff --git a/homeassistant/components/control4/__init__.py b/homeassistant/components/control4/__init__.py
index 78e27d86f8e..6e4af61e24b 100644
--- a/homeassistant/components/control4/__init__.py
+++ b/homeassistant/components/control4/__init__.py
@@ -41,7 +41,7 @@ _LOGGER = logging.getLogger(__name__)
 PLATFORMS = ["light"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Control4 from a config entry."""
     hass.data.setdefault(DOMAIN, {})
     entry_data = hass.data[DOMAIN].setdefault(entry.entry_id, {})
diff --git a/homeassistant/components/daikin/__init__.py b/homeassistant/components/daikin/__init__.py
index 63b0c7de25e..504f8cd9f86 100644
--- a/homeassistant/components/daikin/__init__.py
+++ b/homeassistant/components/daikin/__init__.py
@@ -27,7 +27,7 @@ PLATFORMS = ["climate", "sensor", "switch"]
 CONFIG_SCHEMA = cv.deprecated(DOMAIN)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Establish connection with Daikin."""
     conf = entry.data
     # For backwards compat, set unique ID
diff --git a/homeassistant/components/dexcom/__init__.py b/homeassistant/components/dexcom/__init__.py
index 1c02a86ca42..68622a23350 100644
--- a/homeassistant/components/dexcom/__init__.py
+++ b/homeassistant/components/dexcom/__init__.py
@@ -25,7 +25,7 @@ _LOGGER = logging.getLogger(__name__)
 SCAN_INTERVAL = timedelta(seconds=180)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Dexcom from a config entry."""
     try:
         dexcom = await hass.async_add_executor_job(
diff --git a/homeassistant/components/doorbird/__init__.py b/homeassistant/components/doorbird/__init__.py
index 30c2613f0d5..f0579ef900b 100644
--- a/homeassistant/components/doorbird/__init__.py
+++ b/homeassistant/components/doorbird/__init__.py
@@ -90,7 +90,7 @@ async def async_setup(hass: HomeAssistant, config: dict):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up DoorBird from a config entry."""
 
     _async_import_options_from_data_if_missing(hass, entry)
diff --git a/homeassistant/components/dsmr/__init__.py b/homeassistant/components/dsmr/__init__.py
index ba876111a4e..61c7660fc69 100644
--- a/homeassistant/components/dsmr/__init__.py
+++ b/homeassistant/components/dsmr/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.core import HomeAssistant
 from .const import DATA_LISTENER, DATA_TASK, DOMAIN, PLATFORMS
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up DSMR from a config entry."""
     hass.data.setdefault(DOMAIN, {})
     hass.data[DOMAIN][entry.entry_id] = {}
diff --git a/homeassistant/components/elkm1/__init__.py b/homeassistant/components/elkm1/__init__.py
index ff2f2533d24..6a96a73de22 100644
--- a/homeassistant/components/elkm1/__init__.py
+++ b/homeassistant/components/elkm1/__init__.py
@@ -195,7 +195,7 @@ def _async_find_matching_config_entry(hass, prefix):
             return entry
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Elk-M1 Control from a config entry."""
     conf = entry.data
 
diff --git a/homeassistant/components/emonitor/__init__.py b/homeassistant/components/emonitor/__init__.py
index 516f38d64c2..69c8b907b72 100644
--- a/homeassistant/components/emonitor/__init__.py
+++ b/homeassistant/components/emonitor/__init__.py
@@ -19,7 +19,7 @@ DEFAULT_UPDATE_RATE = 60
 PLATFORMS = ["sensor"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up SiteSage Emonitor from a config entry."""
 
     session = aiohttp_client.async_get_clientsession(hass)
diff --git a/homeassistant/components/epson/__init__.py b/homeassistant/components/epson/__init__.py
index 1982731b9ef..e60df7dc8bc 100644
--- a/homeassistant/components/epson/__init__.py
+++ b/homeassistant/components/epson/__init__.py
@@ -41,7 +41,7 @@ async def validate_projector(
     return epson_proj
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up epson from a config entry."""
     projector = await validate_projector(
         hass=hass,
diff --git a/homeassistant/components/faa_delays/__init__.py b/homeassistant/components/faa_delays/__init__.py
index 56cf9ad13bc..c270a878d49 100644
--- a/homeassistant/components/faa_delays/__init__.py
+++ b/homeassistant/components/faa_delays/__init__.py
@@ -19,7 +19,7 @@ _LOGGER = logging.getLogger(__name__)
 PLATFORMS = ["binary_sensor"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up FAA Delays from a config entry."""
     code = entry.data[CONF_ID]
 
diff --git a/homeassistant/components/flick_electric/__init__.py b/homeassistant/components/flick_electric/__init__.py
index ff9b737cd00..690cbe03cdd 100644
--- a/homeassistant/components/flick_electric/__init__.py
+++ b/homeassistant/components/flick_electric/__init__.py
@@ -24,7 +24,7 @@ CONF_ID_TOKEN = "id_token"
 PLATFORMS = ["sensor"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Flick Electric from a config entry."""
     auth = HassFlickAuth(hass, entry)
 
diff --git a/homeassistant/components/flo/__init__.py b/homeassistant/components/flo/__init__.py
index 890f18ee3b7..734c4d9e766 100644
--- a/homeassistant/components/flo/__init__.py
+++ b/homeassistant/components/flo/__init__.py
@@ -19,7 +19,7 @@ _LOGGER = logging.getLogger(__name__)
 PLATFORMS = ["binary_sensor", "sensor", "switch"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up flo from a config entry."""
     session = async_get_clientsession(hass)
     hass.data.setdefault(DOMAIN, {})
diff --git a/homeassistant/components/flume/__init__.py b/homeassistant/components/flume/__init__.py
index 9bdc918be9c..4fc66d0ee70 100644
--- a/homeassistant/components/flume/__init__.py
+++ b/homeassistant/components/flume/__init__.py
@@ -53,7 +53,7 @@ def _setup_entry(hass: HomeAssistant, entry: ConfigEntry):
     return flume_auth, flume_devices, http_session
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up flume from a config entry."""
 
     flume_auth, flume_devices, http_session = await hass.async_add_executor_job(
diff --git a/homeassistant/components/foscam/__init__.py b/homeassistant/components/foscam/__init__.py
index 148768d6289..9d825ed0851 100644
--- a/homeassistant/components/foscam/__init__.py
+++ b/homeassistant/components/foscam/__init__.py
@@ -13,7 +13,7 @@ from .const import CONF_RTSP_PORT, DOMAIN, LOGGER, SERVICE_PTZ, SERVICE_PTZ_PRES
 PLATFORMS = ["camera"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up foscam from a config entry."""
     hass.config_entries.async_setup_platforms(entry, PLATFORMS)
 
diff --git a/homeassistant/components/freebox/__init__.py b/homeassistant/components/freebox/__init__.py
index 44816a5c8ae..bb308e154ef 100644
--- a/homeassistant/components/freebox/__init__.py
+++ b/homeassistant/components/freebox/__init__.py
@@ -39,7 +39,7 @@ async def async_setup(hass, config):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Freebox entry."""
     router = FreeboxRouter(hass, entry)
     await router.setup()
diff --git a/homeassistant/components/garmin_connect/__init__.py b/homeassistant/components/garmin_connect/__init__.py
index 4ac157707fc..af08a86abb2 100644
--- a/homeassistant/components/garmin_connect/__init__.py
+++ b/homeassistant/components/garmin_connect/__init__.py
@@ -23,7 +23,7 @@ PLATFORMS = ["sensor"]
 MIN_SCAN_INTERVAL = timedelta(minutes=10)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Garmin Connect from a config entry."""
     username = entry.data[CONF_USERNAME]
     password = entry.data[CONF_PASSWORD]
diff --git a/homeassistant/components/google_travel_time/__init__.py b/homeassistant/components/google_travel_time/__init__.py
index 231a2db22e2..88fe587fbd0 100644
--- a/homeassistant/components/google_travel_time/__init__.py
+++ b/homeassistant/components/google_travel_time/__init__.py
@@ -12,7 +12,7 @@ PLATFORMS = ["sensor"]
 _LOGGER = logging.getLogger(__name__)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Google Maps Travel Time from a config entry."""
     if entry.unique_id is not None:
         hass.config_entries.async_update_entry(entry, unique_id=None)
diff --git a/homeassistant/components/gree/__init__.py b/homeassistant/components/gree/__init__.py
index b873d5ba4d3..b91324ba4b3 100644
--- a/homeassistant/components/gree/__init__.py
+++ b/homeassistant/components/gree/__init__.py
@@ -23,7 +23,7 @@ _LOGGER = logging.getLogger(__name__)
 PLATFORMS = [CLIMATE_DOMAIN, SWITCH_DOMAIN]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Gree Climate from a config entry."""
     hass.data.setdefault(DOMAIN, {})
     gree_discovery = DiscoveryService(hass)
diff --git a/homeassistant/components/harmony/__init__.py b/homeassistant/components/harmony/__init__.py
index d0172bf7378..e76e5559f9d 100644
--- a/homeassistant/components/harmony/__init__.py
+++ b/homeassistant/components/harmony/__init__.py
@@ -23,7 +23,7 @@ from .data import HarmonyData
 _LOGGER = logging.getLogger(__name__)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Logitech Harmony Hub from a config entry."""
     # As there currently is no way to import options from yaml
     # when setting up a config entry, we fallback to adding
diff --git a/homeassistant/components/heos/__init__.py b/homeassistant/components/heos/__init__.py
index 3a9bedbb376..7490c1e5be1 100644
--- a/homeassistant/components/heos/__init__.py
+++ b/homeassistant/components/heos/__init__.py
@@ -67,7 +67,7 @@ async def async_setup(hass: HomeAssistant, config: ConfigType):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Initialize config entry which represents the HEOS controller."""
     # For backwards compat
     if entry.unique_id is None:
diff --git a/homeassistant/components/homekit/__init__.py b/homeassistant/components/homekit/__init__.py
index 77a9ae27400..32b528f567c 100644
--- a/homeassistant/components/homekit/__init__.py
+++ b/homeassistant/components/homekit/__init__.py
@@ -231,7 +231,7 @@ def _async_update_config_entry_if_from_yaml(hass, entries_by_name, conf):
     return False
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up HomeKit from a config entry."""
     _async_import_options_from_data_if_missing(hass, entry)
 
diff --git a/homeassistant/components/huisbaasje/__init__.py b/homeassistant/components/huisbaasje/__init__.py
index f89c9f07625..8bd07474705 100644
--- a/homeassistant/components/huisbaasje/__init__.py
+++ b/homeassistant/components/huisbaasje/__init__.py
@@ -28,7 +28,7 @@ PLATFORMS = ["sensor"]
 _LOGGER = logging.getLogger(__name__)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Huisbaasje from a config entry."""
     # Create the Huisbaasje client
     huisbaasje = Huisbaasje(
diff --git a/homeassistant/components/hunterdouglas_powerview/__init__.py b/homeassistant/components/hunterdouglas_powerview/__init__.py
index d9a52446028..7b945d9bdfe 100644
--- a/homeassistant/components/hunterdouglas_powerview/__init__.py
+++ b/homeassistant/components/hunterdouglas_powerview/__init__.py
@@ -59,7 +59,7 @@ PLATFORMS = ["cover", "scene", "sensor"]
 _LOGGER = logging.getLogger(__name__)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Hunter Douglas PowerView from a config entry."""
 
     config = entry.data
diff --git a/homeassistant/components/hvv_departures/__init__.py b/homeassistant/components/hvv_departures/__init__.py
index acdb3dcfb64..d57fe20f95e 100644
--- a/homeassistant/components/hvv_departures/__init__.py
+++ b/homeassistant/components/hvv_departures/__init__.py
@@ -13,7 +13,7 @@ from .hub import GTIHub
 PLATFORMS = [DOMAIN_SENSOR, DOMAIN_BINARY_SENSOR]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up HVV from a config entry."""
 
     hub = GTIHub(
diff --git a/homeassistant/components/ialarm/__init__.py b/homeassistant/components/ialarm/__init__.py
index a74eea7ba07..1fb35e23c9e 100644
--- a/homeassistant/components/ialarm/__init__.py
+++ b/homeassistant/components/ialarm/__init__.py
@@ -18,7 +18,7 @@ PLATFORMS = ["alarm_control_panel"]
 _LOGGER = logging.getLogger(__name__)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up iAlarm config."""
     host = entry.data[CONF_HOST]
     port = entry.data[CONF_PORT]
diff --git a/homeassistant/components/iaqualink/__init__.py b/homeassistant/components/iaqualink/__init__.py
index 4ed9efd06f2..2bd0cade3b9 100644
--- a/homeassistant/components/iaqualink/__init__.py
+++ b/homeassistant/components/iaqualink/__init__.py
@@ -85,7 +85,7 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> None:
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Aqualink from a config entry."""
     username = entry.data[CONF_USERNAME]
     password = entry.data[CONF_PASSWORD]
diff --git a/homeassistant/components/juicenet/__init__.py b/homeassistant/components/juicenet/__init__.py
index 28789849944..38089a6e17f 100644
--- a/homeassistant/components/juicenet/__init__.py
+++ b/homeassistant/components/juicenet/__init__.py
@@ -46,7 +46,7 @@ async def async_setup(hass: HomeAssistant, config: dict):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up JuiceNet from a config entry."""
 
     config = entry.data
diff --git a/homeassistant/components/kmtronic/__init__.py b/homeassistant/components/kmtronic/__init__.py
index 7dd5b087a87..5226dfb4f26 100644
--- a/homeassistant/components/kmtronic/__init__.py
+++ b/homeassistant/components/kmtronic/__init__.py
@@ -20,7 +20,7 @@ PLATFORMS = ["switch"]
 _LOGGER = logging.getLogger(__name__)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up kmtronic from a config entry."""
     session = aiohttp_client.async_get_clientsession(hass)
     auth = Auth(
diff --git a/homeassistant/components/kodi/__init__.py b/homeassistant/components/kodi/__init__.py
index fe318b103d1..0b2b1b8047b 100644
--- a/homeassistant/components/kodi/__init__.py
+++ b/homeassistant/components/kodi/__init__.py
@@ -28,7 +28,7 @@ _LOGGER = logging.getLogger(__name__)
 PLATFORMS = ["media_player"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Kodi from a config entry."""
     conn = get_kodi_connection(
         entry.data[CONF_HOST],
diff --git a/homeassistant/components/konnected/__init__.py b/homeassistant/components/konnected/__init__.py
index 857521b9fad..4b5890532d1 100644
--- a/homeassistant/components/konnected/__init__.py
+++ b/homeassistant/components/konnected/__init__.py
@@ -250,7 +250,7 @@ async def async_setup(hass: HomeAssistant, config: dict):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up panel from a config entry."""
     client = AlarmPanel(hass, entry)
     # creates a panel data store in hass.data[DOMAIN][CONF_DEVICES]
diff --git a/homeassistant/components/kulersky/__init__.py b/homeassistant/components/kulersky/__init__.py
index 6409d435bf3..03819c360d6 100644
--- a/homeassistant/components/kulersky/__init__.py
+++ b/homeassistant/components/kulersky/__init__.py
@@ -8,7 +8,7 @@ from .const import DATA_ADDRESSES, DATA_DISCOVERY_SUBSCRIPTION, DOMAIN
 PLATFORMS = ["light"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Kuler Sky from a config entry."""
     if DOMAIN not in hass.data:
         hass.data[DOMAIN] = {}
diff --git a/homeassistant/components/litterrobot/__init__.py b/homeassistant/components/litterrobot/__init__.py
index 424a6a92aba..25500a1fcfb 100644
--- a/homeassistant/components/litterrobot/__init__.py
+++ b/homeassistant/components/litterrobot/__init__.py
@@ -12,7 +12,7 @@ from .hub import LitterRobotHub
 PLATFORMS = ["sensor", "switch", "vacuum"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Litter-Robot from a config entry."""
     hass.data.setdefault(DOMAIN, {})
     hub = hass.data[DOMAIN][entry.entry_id] = LitterRobotHub(hass, entry.data)
diff --git a/homeassistant/components/mazda/__init__.py b/homeassistant/components/mazda/__init__.py
index 2c480aaf606..469e28eb829 100644
--- a/homeassistant/components/mazda/__init__.py
+++ b/homeassistant/components/mazda/__init__.py
@@ -43,7 +43,7 @@ async def with_timeout(task, timeout_seconds=10):
         return await task
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Mazda Connected Services from a config entry."""
     email = entry.data[CONF_EMAIL]
     password = entry.data[CONF_PASSWORD]
diff --git a/homeassistant/components/melcloud/__init__.py b/homeassistant/components/melcloud/__init__.py
index 7b42c1f42e8..12b80554933 100644
--- a/homeassistant/components/melcloud/__init__.py
+++ b/homeassistant/components/melcloud/__init__.py
@@ -61,7 +61,7 @@ async def async_setup(hass: HomeAssistant, config: ConfigEntry):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Establish connection with MELClooud."""
     conf = entry.data
     mel_devices = await mel_devices_setup(hass, conf[CONF_TOKEN])
diff --git a/homeassistant/components/metoffice/__init__.py b/homeassistant/components/metoffice/__init__.py
index 9bf9e44b72a..f73c87f94ec 100644
--- a/homeassistant/components/metoffice/__init__.py
+++ b/homeassistant/components/metoffice/__init__.py
@@ -22,7 +22,7 @@ _LOGGER = logging.getLogger(__name__)
 PLATFORMS = ["sensor", "weather"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up a Met Office entry."""
 
     latitude = entry.data[CONF_LATITUDE]
diff --git a/homeassistant/components/monoprice/__init__.py b/homeassistant/components/monoprice/__init__.py
index f543220b5b9..9ee6128c784 100644
--- a/homeassistant/components/monoprice/__init__.py
+++ b/homeassistant/components/monoprice/__init__.py
@@ -22,7 +22,7 @@ PLATFORMS = ["media_player"]
 _LOGGER = logging.getLogger(__name__)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Monoprice 6-Zone Amplifier from a config entry."""
     port = entry.data[CONF_PORT]
 
diff --git a/homeassistant/components/mullvad/__init__.py b/homeassistant/components/mullvad/__init__.py
index d89c947a4f3..44d10a66d5d 100644
--- a/homeassistant/components/mullvad/__init__.py
+++ b/homeassistant/components/mullvad/__init__.py
@@ -14,7 +14,7 @@ from .const import DOMAIN
 PLATFORMS = ["binary_sensor"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: dict):
+async def async_setup_entry(hass: HomeAssistant, entry: dict) -> bool:
     """Set up Mullvad VPN integration."""
 
     async def async_get_mullvad_api_data():
diff --git a/homeassistant/components/myq/__init__.py b/homeassistant/components/myq/__init__.py
index a299968712a..063f044117e 100644
--- a/homeassistant/components/myq/__init__.py
+++ b/homeassistant/components/myq/__init__.py
@@ -17,7 +17,7 @@ from .const import DOMAIN, MYQ_COORDINATOR, MYQ_GATEWAY, PLATFORMS, UPDATE_INTER
 _LOGGER = logging.getLogger(__name__)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up MyQ from a config entry."""
 
     hass.data.setdefault(DOMAIN, {})
diff --git a/homeassistant/components/nest/__init__.py b/homeassistant/components/nest/__init__.py
index 5cd84effbc8..fb488763750 100644
--- a/homeassistant/components/nest/__init__.py
+++ b/homeassistant/components/nest/__init__.py
@@ -135,7 +135,7 @@ class SignalUpdateCallback:
             self._hass.bus.async_fire(NEST_EVENT, message)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Nest from a config entry with dispatch between old/new flows."""
 
     if DATA_SDM not in entry.data:
diff --git a/homeassistant/components/netatmo/__init__.py b/homeassistant/components/netatmo/__init__.py
index 354ce2cf942..c401b46f981 100644
--- a/homeassistant/components/netatmo/__init__.py
+++ b/homeassistant/components/netatmo/__init__.py
@@ -96,7 +96,7 @@ async def async_setup(hass: HomeAssistant, config: dict):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Netatmo from a config entry."""
     implementation = (
         await config_entry_oauth2_flow.async_get_config_entry_implementation(
diff --git a/homeassistant/components/nexia/__init__.py b/homeassistant/components/nexia/__init__.py
index 65be22b57f1..e9f31749042 100644
--- a/homeassistant/components/nexia/__init__.py
+++ b/homeassistant/components/nexia/__init__.py
@@ -24,7 +24,7 @@ CONFIG_SCHEMA = cv.deprecated(DOMAIN)
 DEFAULT_UPDATE_RATE = 120
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Configure the base Nexia device for Home Assistant."""
 
     conf = entry.data
diff --git a/homeassistant/components/nightscout/__init__.py b/homeassistant/components/nightscout/__init__.py
index 8608386c483..69d79d1cecb 100644
--- a/homeassistant/components/nightscout/__init__.py
+++ b/homeassistant/components/nightscout/__init__.py
@@ -18,7 +18,7 @@ PLATFORMS = ["sensor"]
 _API_TIMEOUT = SLOW_UPDATE_WARNING - 1
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Nightscout from a config entry."""
     server_url = entry.data[CONF_URL]
     api_key = entry.data.get(CONF_API_KEY)
diff --git a/homeassistant/components/nuheat/__init__.py b/homeassistant/components/nuheat/__init__.py
index db50a9a70d9..08cacd2bf76 100644
--- a/homeassistant/components/nuheat/__init__.py
+++ b/homeassistant/components/nuheat/__init__.py
@@ -30,7 +30,7 @@ def _get_thermostat(api, serial_number):
     return api.get_thermostat(serial_number)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up NuHeat from a config entry."""
 
     conf = entry.data
diff --git a/homeassistant/components/nut/__init__.py b/homeassistant/components/nut/__init__.py
index 77458b2cfb7..5b5389f0270 100644
--- a/homeassistant/components/nut/__init__.py
+++ b/homeassistant/components/nut/__init__.py
@@ -36,7 +36,7 @@ from .const import (
 _LOGGER = logging.getLogger(__name__)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Network UPS Tools (NUT) from a config entry."""
 
     config = entry.data
diff --git a/homeassistant/components/nws/__init__.py b/homeassistant/components/nws/__init__.py
index 47465739250..0e00c848970 100644
--- a/homeassistant/components/nws/__init__.py
+++ b/homeassistant/components/nws/__init__.py
@@ -93,7 +93,7 @@ class NwsDataUpdateCoordinator(DataUpdateCoordinator):
         )
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up a National Weather Service entry."""
     latitude = entry.data[CONF_LATITUDE]
     longitude = entry.data[CONF_LONGITUDE]
diff --git a/homeassistant/components/omnilogic/__init__.py b/homeassistant/components/omnilogic/__init__.py
index 8d2071dee7c..556c100033b 100644
--- a/homeassistant/components/omnilogic/__init__.py
+++ b/homeassistant/components/omnilogic/__init__.py
@@ -23,7 +23,7 @@ _LOGGER = logging.getLogger(__name__)
 PLATFORMS = ["sensor", "switch"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Omnilogic from a config entry."""
 
     conf = entry.data
diff --git a/homeassistant/components/onvif/__init__.py b/homeassistant/components/onvif/__init__.py
index f90ccb16760..5c44cdf1750 100644
--- a/homeassistant/components/onvif/__init__.py
+++ b/homeassistant/components/onvif/__init__.py
@@ -59,7 +59,7 @@ async def async_setup(hass: HomeAssistant, config: dict):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up ONVIF from a config entry."""
     if DOMAIN not in hass.data:
         hass.data[DOMAIN] = {}
diff --git a/homeassistant/components/openweathermap/__init__.py b/homeassistant/components/openweathermap/__init__.py
index ed8f71bf634..49bb870271e 100644
--- a/homeassistant/components/openweathermap/__init__.py
+++ b/homeassistant/components/openweathermap/__init__.py
@@ -30,7 +30,7 @@ from .weather_update_coordinator import WeatherUpdateCoordinator
 _LOGGER = logging.getLogger(__name__)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up OpenWeatherMap as config entry."""
     name = entry.data[CONF_NAME]
     api_key = entry.data[CONF_API_KEY]
diff --git a/homeassistant/components/ozw/__init__.py b/homeassistant/components/ozw/__init__.py
index 7890129dd91..6d9b474977d 100644
--- a/homeassistant/components/ozw/__init__.py
+++ b/homeassistant/components/ozw/__init__.py
@@ -56,7 +56,9 @@ DATA_DEVICES = "zwave-mqtt-devices"
 DATA_STOP_MQTT_CLIENT = "ozw_stop_mqtt_client"
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):  # noqa: C901
+async def async_setup_entry(  # noqa: C901
+    hass: HomeAssistant, entry: ConfigEntry
+) -> bool:
     """Set up ozw from a config entry."""
     hass.data.setdefault(DOMAIN, {})
     ozw_data = hass.data[DOMAIN][entry.entry_id] = {}
@@ -298,7 +300,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):  # noqa: C
     return True
 
 
-async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Unload a config entry."""
     # cleanup platforms
     unload_ok = await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
diff --git a/homeassistant/components/philips_js/__init__.py b/homeassistant/components/philips_js/__init__.py
index f21337f512e..ffa2109a6e5 100644
--- a/homeassistant/components/philips_js/__init__.py
+++ b/homeassistant/components/philips_js/__init__.py
@@ -27,7 +27,7 @@ PLATFORMS = ["media_player", "remote"]
 LOGGER = logging.getLogger(__name__)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Philips TV from a config entry."""
 
     tvapi = PhilipsTV(
diff --git a/homeassistant/components/picnic/__init__.py b/homeassistant/components/picnic/__init__.py
index 055faadb784..1a2164dafed 100644
--- a/homeassistant/components/picnic/__init__.py
+++ b/homeassistant/components/picnic/__init__.py
@@ -20,7 +20,7 @@ def create_picnic_client(entry: ConfigEntry):
     )
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Picnic from a config entry."""
     picnic_client = await hass.async_add_executor_job(create_picnic_client, entry)
     picnic_coordinator = PicnicUpdateCoordinator(hass, picnic_client, entry)
diff --git a/homeassistant/components/plaato/__init__.py b/homeassistant/components/plaato/__init__.py
index d73b997398a..c214061c416 100644
--- a/homeassistant/components/plaato/__init__.py
+++ b/homeassistant/components/plaato/__init__.py
@@ -83,7 +83,7 @@ WEBHOOK_SCHEMA = vol.Schema(
 )
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Configure based on config entry."""
     hass.data.setdefault(DOMAIN, {})
     use_webhook = entry.data[CONF_USE_WEBHOOK]
diff --git a/homeassistant/components/plum_lightpad/__init__.py b/homeassistant/components/plum_lightpad/__init__.py
index ab370f53731..9f69c8579a4 100644
--- a/homeassistant/components/plum_lightpad/__init__.py
+++ b/homeassistant/components/plum_lightpad/__init__.py
@@ -51,7 +51,7 @@ async def async_setup(hass: HomeAssistant, config: dict):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Plum Lightpad from a config entry."""
     _LOGGER.debug("Setting up config entry with ID = %s", entry.unique_id)
 
diff --git a/homeassistant/components/point/__init__.py b/homeassistant/components/point/__init__.py
index 45f58949e77..43f489d5132 100644
--- a/homeassistant/components/point/__init__.py
+++ b/homeassistant/components/point/__init__.py
@@ -74,7 +74,7 @@ async def async_setup(hass, config):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Point from a config entry."""
 
     async def token_saver(token, **kwargs):
diff --git a/homeassistant/components/poolsense/__init__.py b/homeassistant/components/poolsense/__init__.py
index 89e340ee95e..5ec1cb475b5 100644
--- a/homeassistant/components/poolsense/__init__.py
+++ b/homeassistant/components/poolsense/__init__.py
@@ -24,7 +24,7 @@ PLATFORMS = ["sensor", "binary_sensor"]
 _LOGGER = logging.getLogger(__name__)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up PoolSense from a config entry."""
 
     poolsense = PoolSense(
diff --git a/homeassistant/components/powerwall/__init__.py b/homeassistant/components/powerwall/__init__.py
index 0f63bf97986..3bc4dc9b035 100644
--- a/homeassistant/components/powerwall/__init__.py
+++ b/homeassistant/components/powerwall/__init__.py
@@ -83,7 +83,7 @@ async def _async_handle_api_changed_error(
     )
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Tesla Powerwall from a config entry."""
 
     entry_id = entry.entry_id
diff --git a/homeassistant/components/profiler/__init__.py b/homeassistant/components/profiler/__init__.py
index e6bc68ba918..e2d44451ec2 100644
--- a/homeassistant/components/profiler/__init__.py
+++ b/homeassistant/components/profiler/__init__.py
@@ -51,7 +51,7 @@ LOG_INTERVAL_SUB = "log_interval_subscription"
 _LOGGER = logging.getLogger(__name__)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Profiler from a config entry."""
     lock = asyncio.Lock()
     domain_data = hass.data[DOMAIN] = {}
@@ -194,7 +194,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
     return True
 
 
-async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Unload a config entry."""
     for service in SERVICES:
         hass.services.async_remove(domain=DOMAIN, service=service)
diff --git a/homeassistant/components/progettihwsw/__init__.py b/homeassistant/components/progettihwsw/__init__.py
index 78ea16bb26c..55ed9c0241b 100644
--- a/homeassistant/components/progettihwsw/__init__.py
+++ b/homeassistant/components/progettihwsw/__init__.py
@@ -12,7 +12,7 @@ from .const import DOMAIN
 PLATFORMS = ["switch", "binary_sensor"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up ProgettiHWSW Automation from a config entry."""
     hass.data.setdefault(DOMAIN, {})
     hass.data[DOMAIN][entry.entry_id] = ProgettiHWSWAPI(
diff --git a/homeassistant/components/pvpc_hourly_pricing/__init__.py b/homeassistant/components/pvpc_hourly_pricing/__init__.py
index 529fd601f30..22ad590659e 100644
--- a/homeassistant/components/pvpc_hourly_pricing/__init__.py
+++ b/homeassistant/components/pvpc_hourly_pricing/__init__.py
@@ -43,7 +43,7 @@ async def async_setup(hass: HomeAssistant, config: dict):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up pvpc hourly pricing from a config entry."""
     hass.config_entries.async_setup_platforms(entry, PLATFORMS)
     return True
diff --git a/homeassistant/components/rachio/__init__.py b/homeassistant/components/rachio/__init__.py
index 3f75537cc8d..3e8e26e2a13 100644
--- a/homeassistant/components/rachio/__init__.py
+++ b/homeassistant/components/rachio/__init__.py
@@ -39,7 +39,7 @@ async def async_remove_entry(hass, entry):
         await hass.components.cloud.async_delete_cloudhook(entry.data[CONF_WEBHOOK_ID])
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up the Rachio config entry."""
 
     config = entry.data
diff --git a/homeassistant/components/risco/__init__.py b/homeassistant/components/risco/__init__.py
index 48c50f9cc46..4b33873e88d 100644
--- a/homeassistant/components/risco/__init__.py
+++ b/homeassistant/components/risco/__init__.py
@@ -27,7 +27,7 @@ LAST_EVENT_TIMESTAMP_KEY = "last_event_timestamp"
 _LOGGER = logging.getLogger(__name__)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Risco from a config entry."""
     data = entry.data
     risco = RiscoAPI(data[CONF_USERNAME], data[CONF_PASSWORD], data[CONF_PIN])
diff --git a/homeassistant/components/rituals_perfume_genie/__init__.py b/homeassistant/components/rituals_perfume_genie/__init__.py
index 65c1a2dd97c..0ec0ca47a09 100644
--- a/homeassistant/components/rituals_perfume_genie/__init__.py
+++ b/homeassistant/components/rituals_perfume_genie/__init__.py
@@ -22,7 +22,7 @@ _LOGGER = logging.getLogger(__name__)
 UPDATE_INTERVAL = timedelta(seconds=30)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Rituals Perfume Genie from a config entry."""
     session = async_get_clientsession(hass)
     account = Account(EMPTY_CREDENTIALS, EMPTY_CREDENTIALS, session)
diff --git a/homeassistant/components/rpi_power/__init__.py b/homeassistant/components/rpi_power/__init__.py
index 305ad7d1f62..eeb7c4fe181 100644
--- a/homeassistant/components/rpi_power/__init__.py
+++ b/homeassistant/components/rpi_power/__init__.py
@@ -5,7 +5,7 @@ from homeassistant.core import HomeAssistant
 PLATFORMS = ["binary_sensor"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Raspberry Pi Power Supply Checker from a config entry."""
     hass.config_entries.async_setup_platforms(entry, PLATFORMS)
     return True
diff --git a/homeassistant/components/screenlogic/__init__.py b/homeassistant/components/screenlogic/__init__.py
index 2225ef3d9dd..521a1ea798c 100644
--- a/homeassistant/components/screenlogic/__init__.py
+++ b/homeassistant/components/screenlogic/__init__.py
@@ -38,7 +38,7 @@ async def async_setup(hass: HomeAssistant, config: dict):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Screenlogic from a config entry."""
     mac = entry.unique_id
     # Attempt to re-discover named gateway to follow IP changes
diff --git a/homeassistant/components/sense/__init__.py b/homeassistant/components/sense/__init__.py
index e431fe2487b..bfc3f42b421 100644
--- a/homeassistant/components/sense/__init__.py
+++ b/homeassistant/components/sense/__init__.py
@@ -55,7 +55,7 @@ class SenseDevicesData:
         return self._data_by_device.get(sense_device_id)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Sense from a config entry."""
 
     entry_data = entry.data
diff --git a/homeassistant/components/shelly/__init__.py b/homeassistant/components/shelly/__init__.py
index d2c56217afe..ab0facea920 100644
--- a/homeassistant/components/shelly/__init__.py
+++ b/homeassistant/components/shelly/__init__.py
@@ -66,7 +66,7 @@ async def async_setup(hass: HomeAssistant, config: dict):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Shelly from a config entry."""
     hass.data[DOMAIN][DATA_CONFIG_ENTRY][entry.entry_id] = {}
     hass.data[DOMAIN][DATA_CONFIG_ENTRY][entry.entry_id][DEVICE] = None
diff --git a/homeassistant/components/smappee/__init__.py b/homeassistant/components/smappee/__init__.py
index 3386f7340eb..1037d399e64 100644
--- a/homeassistant/components/smappee/__init__.py
+++ b/homeassistant/components/smappee/__init__.py
@@ -71,7 +71,7 @@ async def async_setup(hass: HomeAssistant, config: dict):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Smappee from a zeroconf or config entry."""
     if CONF_IP_ADDRESS in entry.data:
         if helper.is_smappee_genius(entry.data[CONF_SERIALNUMBER]):
diff --git a/homeassistant/components/smart_meter_texas/__init__.py b/homeassistant/components/smart_meter_texas/__init__.py
index 82a8ccb354b..3e88221851b 100644
--- a/homeassistant/components/smart_meter_texas/__init__.py
+++ b/homeassistant/components/smart_meter_texas/__init__.py
@@ -32,7 +32,7 @@ _LOGGER = logging.getLogger(__name__)
 PLATFORMS = ["sensor"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Smart Meter Texas from a config entry."""
 
     username = entry.data[CONF_USERNAME]
diff --git a/homeassistant/components/smarthab/__init__.py b/homeassistant/components/smarthab/__init__.py
index 3777f35dbc2..ec4d2c9cad6 100644
--- a/homeassistant/components/smarthab/__init__.py
+++ b/homeassistant/components/smarthab/__init__.py
@@ -52,7 +52,7 @@ async def async_setup(hass, config) -> bool:
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up config entry for SmartHab integration."""
 
     # Assign configuration variables
diff --git a/homeassistant/components/smartthings/__init__.py b/homeassistant/components/smartthings/__init__.py
index 00ea0eb681e..231cfa95263 100644
--- a/homeassistant/components/smartthings/__init__.py
+++ b/homeassistant/components/smartthings/__init__.py
@@ -62,7 +62,7 @@ async def async_setup(hass: HomeAssistant, config: ConfigType):
     return True
 
 
-async def async_migrate_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_migrate_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Handle migration of a previous version config entry.
 
     A config entry created under a previous version must go through the
@@ -84,7 +84,7 @@ async def async_migrate_entry(hass: HomeAssistant, entry: ConfigEntry):
     return False
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Initialize config entry which represents an installed SmartApp."""
     # For backwards compat
     if entry.unique_id is None:
diff --git a/homeassistant/components/sms/__init__.py b/homeassistant/components/sms/__init__.py
index 55238c5cf39..52ea32c96d1 100644
--- a/homeassistant/components/sms/__init__.py
+++ b/homeassistant/components/sms/__init__.py
@@ -36,7 +36,7 @@ async def async_setup(hass, config):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Configure Gammu state machine."""
 
     device = entry.data[CONF_DEVICE]
diff --git a/homeassistant/components/solarlog/__init__.py b/homeassistant/components/solarlog/__init__.py
index f48dcfc6267..b3cfebe9abc 100644
--- a/homeassistant/components/solarlog/__init__.py
+++ b/homeassistant/components/solarlog/__init__.py
@@ -5,7 +5,7 @@ from homeassistant.core import HomeAssistant
 PLATFORMS = ["sensor"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up a config entry for solarlog."""
     hass.config_entries.async_setup_platforms(entry, PLATFORMS)
     return True
diff --git a/homeassistant/components/soma/__init__.py b/homeassistant/components/soma/__init__.py
index e90fba62824..10ebd26bde2 100644
--- a/homeassistant/components/soma/__init__.py
+++ b/homeassistant/components/soma/__init__.py
@@ -45,7 +45,7 @@ async def async_setup(hass, config):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Soma from a config entry."""
     hass.data[DOMAIN] = {}
     hass.data[DOMAIN][API] = SomaApi(entry.data[HOST], entry.data[PORT])
diff --git a/homeassistant/components/somfy/__init__.py b/homeassistant/components/somfy/__init__.py
index f159b19c92a..cc7499c3492 100644
--- a/homeassistant/components/somfy/__init__.py
+++ b/homeassistant/components/somfy/__init__.py
@@ -69,7 +69,7 @@ async def async_setup(hass, config):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Somfy from a config entry."""
     # Backwards compat
     if "auth_implementation" not in entry.data:
diff --git a/homeassistant/components/somfy_mylink/__init__.py b/homeassistant/components/somfy_mylink/__init__.py
index ae6a77a1e2c..5377846a4c1 100644
--- a/homeassistant/components/somfy_mylink/__init__.py
+++ b/homeassistant/components/somfy_mylink/__init__.py
@@ -19,7 +19,7 @@ _LOGGER = logging.getLogger(__name__)
 CONFIG_SCHEMA = cv.deprecated(DOMAIN)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Somfy MyLink from a config entry."""
     hass.data.setdefault(DOMAIN, {})
 
diff --git a/homeassistant/components/squeezebox/__init__.py b/homeassistant/components/squeezebox/__init__.py
index f680c4f5f2f..9bdc8ac9669 100644
--- a/homeassistant/components/squeezebox/__init__.py
+++ b/homeassistant/components/squeezebox/__init__.py
@@ -13,7 +13,7 @@ _LOGGER = logging.getLogger(__name__)
 PLATFORMS = [MP_DOMAIN]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Logitech Squeezebox from a config entry."""
     hass.config_entries.async_setup_platforms(entry, PLATFORMS)
     return True
diff --git a/homeassistant/components/srp_energy/__init__.py b/homeassistant/components/srp_energy/__init__.py
index c7bf734b84c..0e25e3f21f6 100644
--- a/homeassistant/components/srp_energy/__init__.py
+++ b/homeassistant/components/srp_energy/__init__.py
@@ -16,7 +16,7 @@ _LOGGER = logging.getLogger(__name__)
 PLATFORMS = ["sensor"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up the SRP Energy component from a config entry."""
     # Store an SrpEnergyClient object for your srp_energy to access
     try:
diff --git a/homeassistant/components/system_bridge/__init__.py b/homeassistant/components/system_bridge/__init__.py
index cb78603f6dc..10ee4165295 100644
--- a/homeassistant/components/system_bridge/__init__.py
+++ b/homeassistant/components/system_bridge/__init__.py
@@ -59,7 +59,7 @@ SERVICE_OPEN_SCHEMA = vol.Schema(
 )
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up System Bridge from a config entry."""
 
     client = Bridge(
diff --git a/homeassistant/components/tado/__init__.py b/homeassistant/components/tado/__init__.py
index 37ee3b47b9b..db42df62154 100644
--- a/homeassistant/components/tado/__init__.py
+++ b/homeassistant/components/tado/__init__.py
@@ -38,7 +38,7 @@ SCAN_INTERVAL = timedelta(minutes=5)
 CONFIG_SCHEMA = cv.deprecated(DOMAIN)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Tado from a config entry."""
 
     _async_import_options_from_data_if_missing(hass, entry)
diff --git a/homeassistant/components/totalconnect/__init__.py b/homeassistant/components/totalconnect/__init__.py
index 7026abc34f9..2183448eed7 100644
--- a/homeassistant/components/totalconnect/__init__.py
+++ b/homeassistant/components/totalconnect/__init__.py
@@ -14,7 +14,7 @@ PLATFORMS = ["alarm_control_panel", "binary_sensor"]
 CONFIG_SCHEMA = cv.deprecated(DOMAIN)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up upon config entry in user interface."""
     conf = entry.data
     username = conf[CONF_USERNAME]
diff --git a/homeassistant/components/tradfri/__init__.py b/homeassistant/components/tradfri/__init__.py
index bf8fa00bbc8..cf39d3d6c05 100644
--- a/homeassistant/components/tradfri/__init__.py
+++ b/homeassistant/components/tradfri/__init__.py
@@ -100,7 +100,7 @@ async def async_setup(hass: HomeAssistant, config: ConfigType):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Create a gateway."""
     # host, identity, key, allow_tradfri_groups
     tradfri_data = hass.data.setdefault(DOMAIN, {})[entry.entry_id] = {}
diff --git a/homeassistant/components/tuya/__init__.py b/homeassistant/components/tuya/__init__.py
index 86ba0e12c61..595350324f9 100644
--- a/homeassistant/components/tuya/__init__.py
+++ b/homeassistant/components/tuya/__init__.py
@@ -93,7 +93,7 @@ def _update_query_interval(hass, interval):
         _LOGGER.warning(ex)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Tuya platform."""
 
     tuya = TuyaApi()
diff --git a/homeassistant/components/twinkly/__init__.py b/homeassistant/components/twinkly/__init__.py
index d7b5230bf38..3a9a2a8faa2 100644
--- a/homeassistant/components/twinkly/__init__.py
+++ b/homeassistant/components/twinkly/__init__.py
@@ -11,7 +11,7 @@ from .const import CONF_ENTRY_HOST, CONF_ENTRY_ID, DOMAIN
 PLATFORMS = ["light"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up entries from config flow."""
 
     # We setup the client here so if at some point we add any other entity for this device,
@@ -28,7 +28,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
     return True
 
 
-async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Remove a twinkly entry."""
 
     # For now light entries don't have unload method, so we don't have to async_forward_entry_unload
diff --git a/homeassistant/components/velbus/__init__.py b/homeassistant/components/velbus/__init__.py
index 47f51d8b26e..b798023c465 100644
--- a/homeassistant/components/velbus/__init__.py
+++ b/homeassistant/components/velbus/__init__.py
@@ -43,7 +43,7 @@ async def async_setup(hass, config):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Establish connection with velbus."""
     hass.data.setdefault(DOMAIN, {})
 
diff --git a/homeassistant/components/vilfo/__init__.py b/homeassistant/components/vilfo/__init__.py
index 59387fa81c8..9a65ba3c400 100644
--- a/homeassistant/components/vilfo/__init__.py
+++ b/homeassistant/components/vilfo/__init__.py
@@ -20,7 +20,7 @@ DEFAULT_SCAN_INTERVAL = timedelta(seconds=30)
 _LOGGER = logging.getLogger(__name__)
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Vilfo Router from a config entry."""
     host = entry.data[CONF_HOST]
     access_token = entry.data[CONF_ACCESS_TOKEN]
diff --git a/homeassistant/components/volumio/__init__.py b/homeassistant/components/volumio/__init__.py
index f9b9432d755..6e0db0f73eb 100644
--- a/homeassistant/components/volumio/__init__.py
+++ b/homeassistant/components/volumio/__init__.py
@@ -13,7 +13,7 @@ from .const import DATA_INFO, DATA_VOLUMIO, DOMAIN
 PLATFORMS = ["media_player"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Volumio from a config entry."""
 
     volumio = Volumio(
diff --git a/homeassistant/components/wallbox/__init__.py b/homeassistant/components/wallbox/__init__.py
index 97b2ea12f35..275ccddde33 100644
--- a/homeassistant/components/wallbox/__init__.py
+++ b/homeassistant/components/wallbox/__init__.py
@@ -89,7 +89,7 @@ class WallboxHub:
         return self._coordinator
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Wallbox from a config entry."""
     wallbox = WallboxHub(
         entry.data[CONF_STATION],
diff --git a/homeassistant/components/wemo/__init__.py b/homeassistant/components/wemo/__init__.py
index cb3beb9b67a..dfdd0a0adb6 100644
--- a/homeassistant/components/wemo/__init__.py
+++ b/homeassistant/components/wemo/__init__.py
@@ -98,7 +98,7 @@ async def async_setup(hass, config):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up a wemo config entry."""
     config = hass.data[DOMAIN].pop("config")
 
diff --git a/homeassistant/components/wiffi/__init__.py b/homeassistant/components/wiffi/__init__.py
index 60ca4f9df53..55b13921c1c 100644
--- a/homeassistant/components/wiffi/__init__.py
+++ b/homeassistant/components/wiffi/__init__.py
@@ -32,7 +32,7 @@ _LOGGER = logging.getLogger(__name__)
 PLATFORMS = ["sensor", "binary_sensor"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up wiffi from a config entry, config_entry contains data from config entry database."""
     if not entry.update_listeners:
         entry.add_update_listener(async_update_options)
diff --git a/homeassistant/components/wilight/__init__.py b/homeassistant/components/wilight/__init__.py
index 0ac2713994b..3c3c24db793 100644
--- a/homeassistant/components/wilight/__init__.py
+++ b/homeassistant/components/wilight/__init__.py
@@ -13,7 +13,7 @@ DOMAIN = "wilight"
 PLATFORMS = ["cover", "fan", "light"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up a wilight config entry."""
 
     parent = WiLightParent(hass, entry)
diff --git a/homeassistant/components/wolflink/__init__.py b/homeassistant/components/wolflink/__init__.py
index 06f3408c6a5..7286f28568d 100644
--- a/homeassistant/components/wolflink/__init__.py
+++ b/homeassistant/components/wolflink/__init__.py
@@ -26,7 +26,7 @@ _LOGGER = logging.getLogger(__name__)
 PLATFORMS = ["sensor"]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Wolf SmartSet Service from a config entry."""
     username = entry.data[CONF_USERNAME]
     password = entry.data[CONF_PASSWORD]
diff --git a/homeassistant/components/xbox/__init__.py b/homeassistant/components/xbox/__init__.py
index db278d0da43..6e651cdbcf3 100644
--- a/homeassistant/components/xbox/__init__.py
+++ b/homeassistant/components/xbox/__init__.py
@@ -72,7 +72,7 @@ async def async_setup(hass: HomeAssistant, config: dict):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up xbox from a config entry."""
     implementation = (
         await config_entry_oauth2_flow.async_get_config_entry_implementation(
diff --git a/homeassistant/components/yeelight/__init__.py b/homeassistant/components/yeelight/__init__.py
index b18f18b6fa4..8ed2164f75c 100644
--- a/homeassistant/components/yeelight/__init__.py
+++ b/homeassistant/components/yeelight/__init__.py
@@ -271,7 +271,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     return True
 
 
-async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Unload a config entry."""
     data_config_entries = hass.data[DOMAIN][DATA_CONFIG_ENTRIES]
     entry_data = data_config_entries[entry.entry_id]
diff --git a/homeassistant/components/zerproc/__init__.py b/homeassistant/components/zerproc/__init__.py
index 8d42c81162f..8643066f59c 100644
--- a/homeassistant/components/zerproc/__init__.py
+++ b/homeassistant/components/zerproc/__init__.py
@@ -17,7 +17,7 @@ async def async_setup(hass, config):
     return True
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Zerproc from a config entry."""
     if DOMAIN not in hass.data:
         hass.data[DOMAIN] = {}