diff --git a/homeassistant/components/rachio/__init__.py b/homeassistant/components/rachio/__init__.py
index 431e3bffb64..028f02ad292 100644
--- a/homeassistant/components/rachio/__init__.py
+++ b/homeassistant/components/rachio/__init__.py
@@ -33,7 +33,7 @@ async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     return unload_ok
 
 
-async def async_remove_entry(hass, entry):
+async def async_remove_entry(hass: HomeAssistant, entry: ConfigEntry) -> None:
     """Remove a rachio config entry."""
     if CONF_CLOUDHOOK_URL in entry.data:
         await hass.components.cloud.async_delete_cloudhook(entry.data[CONF_WEBHOOK_ID])
diff --git a/homeassistant/components/rainbird/__init__.py b/homeassistant/components/rainbird/__init__.py
index 6aa6e837abe..37eff5e81f0 100644
--- a/homeassistant/components/rainbird/__init__.py
+++ b/homeassistant/components/rainbird/__init__.py
@@ -15,8 +15,10 @@ from homeassistant.const import (
     CONF_PASSWORD,
     CONF_TRIGGER_TIME,
 )
+from homeassistant.core import HomeAssistant
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.typing import ConfigType
 
 CONF_ZONES = "zones"
 
@@ -82,7 +84,7 @@ CONFIG_SCHEMA = vol.Schema(
 )
 
 
-def setup(hass, config):
+def setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the Rain Bird component."""
 
     hass.data[DATA_RAINBIRD] = []
diff --git a/homeassistant/components/raincloud/__init__.py b/homeassistant/components/raincloud/__init__.py
index 51e9f5de5ce..75952ebe7eb 100644
--- a/homeassistant/components/raincloud/__init__.py
+++ b/homeassistant/components/raincloud/__init__.py
@@ -15,10 +15,12 @@ from homeassistant.const import (
     TIME_DAYS,
     TIME_MINUTES,
 )
+from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import async_dispatcher_connect, dispatcher_send
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.event import track_time_interval
+from homeassistant.helpers.typing import ConfigType
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -92,7 +94,7 @@ CONFIG_SCHEMA = vol.Schema(
 )
 
 
-def setup(hass, config):
+def setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the Melnor RainCloud component."""
     conf = config[DOMAIN]
     username = conf.get(CONF_USERNAME)
diff --git a/homeassistant/components/raspihats/__init__.py b/homeassistant/components/raspihats/__init__.py
index 478bd9147ef..08626c84439 100644
--- a/homeassistant/components/raspihats/__init__.py
+++ b/homeassistant/components/raspihats/__init__.py
@@ -4,6 +4,8 @@ import threading
 import time
 
 from homeassistant.const import EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.typing import ConfigType
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -29,7 +31,7 @@ I2C_HAT_NAMES = [
 I2C_HATS_MANAGER = "I2CH_MNG"
 
 
-def setup(hass, config):
+def setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the raspihats component."""
     hass.data[I2C_HATS_MANAGER] = I2CHatsManager()
 
diff --git a/homeassistant/components/remember_the_milk/__init__.py b/homeassistant/components/remember_the_milk/__init__.py
index 43658db907c..8e8127bd29b 100644
--- a/homeassistant/components/remember_the_milk/__init__.py
+++ b/homeassistant/components/remember_the_milk/__init__.py
@@ -7,9 +7,11 @@ from rtmapi import Rtm, RtmRequestFailedException
 import voluptuous as vol
 
 from homeassistant.const import CONF_API_KEY, CONF_ID, CONF_NAME, CONF_TOKEN, STATE_OK
+from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.entity_component import EntityComponent
+from homeassistant.helpers.typing import ConfigType
 
 # httplib2 is a transitive dependency from RtmAPI. If this dependency is not
 # set explicitly, the library does not work.
@@ -47,7 +49,7 @@ SERVICE_SCHEMA_CREATE_TASK = vol.Schema(
 SERVICE_SCHEMA_COMPLETE_TASK = vol.Schema({vol.Required(CONF_ID): cv.string})
 
 
-def setup(hass, config):
+def setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the Remember the milk component."""
     component = EntityComponent(_LOGGER, DOMAIN, hass)
 
diff --git a/homeassistant/components/remote_rpi_gpio/__init__.py b/homeassistant/components/remote_rpi_gpio/__init__.py
index b11625eb7b2..c77ae7fde9c 100644
--- a/homeassistant/components/remote_rpi_gpio/__init__.py
+++ b/homeassistant/components/remote_rpi_gpio/__init__.py
@@ -2,6 +2,9 @@
 from gpiozero import LED, DigitalInputDevice
 from gpiozero.pins.pigpio import PiGPIOFactory
 
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.typing import ConfigType
+
 CONF_BOUNCETIME = "bouncetime"
 CONF_INVERT_LOGIC = "invert_logic"
 CONF_PULL_MODE = "pull_mode"
@@ -13,7 +16,7 @@ DEFAULT_PULL_MODE = "UP"
 DOMAIN = "remote_rpi_gpio"
 
 
-def setup(hass, config):
+def setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the Raspberry Pi Remote GPIO component."""
     return True
 
diff --git a/homeassistant/components/repetier/__init__.py b/homeassistant/components/repetier/__init__.py
index 0c88d49eb22..d927a6d854d 100644
--- a/homeassistant/components/repetier/__init__.py
+++ b/homeassistant/components/repetier/__init__.py
@@ -19,10 +19,12 @@ from homeassistant.const import (
     PERCENTAGE,
     TEMP_CELSIUS,
 )
+from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import load_platform
 from homeassistant.helpers.dispatcher import dispatcher_send
 from homeassistant.helpers.event import track_time_interval
+from homeassistant.helpers.typing import ConfigType
 from homeassistant.util import slugify as util_slugify
 
 _LOGGER = logging.getLogger(__name__)
@@ -215,7 +217,7 @@ CONFIG_SCHEMA = vol.Schema(
 )
 
 
-def setup(hass, config):
+def setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the Repetier Server component."""
     hass.data[REPETIER_API] = {}
 
diff --git a/homeassistant/components/rest_command/__init__.py b/homeassistant/components/rest_command/__init__.py
index 43754358a78..f9174743f3c 100644
--- a/homeassistant/components/rest_command/__init__.py
+++ b/homeassistant/components/rest_command/__init__.py
@@ -17,9 +17,10 @@ from homeassistant.const import (
     CONF_USERNAME,
     CONF_VERIFY_SSL,
 )
-from homeassistant.core import ServiceCall, callback
+from homeassistant.core import HomeAssistant, ServiceCall, callback
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.typing import ConfigType
 
 DOMAIN = "rest_command"
 
@@ -54,7 +55,7 @@ CONFIG_SCHEMA = vol.Schema(
 )
 
 
-async def async_setup(hass, config):
+async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the REST command component."""
 
     @callback
diff --git a/homeassistant/components/rflink/__init__.py b/homeassistant/components/rflink/__init__.py
index 7092cf1c811..563ecedec3d 100644
--- a/homeassistant/components/rflink/__init__.py
+++ b/homeassistant/components/rflink/__init__.py
@@ -18,7 +18,7 @@ from homeassistant.const import (
     EVENT_HOMEASSISTANT_STOP,
     STATE_ON,
 )
-from homeassistant.core import CoreState, ServiceCall, callback
+from homeassistant.core import CoreState, HomeAssistant, ServiceCall, callback
 from homeassistant.exceptions import HomeAssistantError
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import (
@@ -27,6 +27,7 @@ from homeassistant.helpers.dispatcher import (
 )
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.restore_state import RestoreEntity
+from homeassistant.helpers.typing import ConfigType
 
 from .utils import brightness_to_rflink
 
@@ -121,7 +122,7 @@ def identify_event_type(event):
     return "unknown"
 
 
-async def async_setup(hass, config):
+async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the Rflink component."""
     # Allow entities to register themselves by device_id to be looked up when
     # new rflink events arrive to be handled
diff --git a/homeassistant/components/ring/__init__.py b/homeassistant/components/ring/__init__.py
index 2e84a00e378..242b4cb8ba0 100644
--- a/homeassistant/components/ring/__init__.py
+++ b/homeassistant/components/ring/__init__.py
@@ -11,9 +11,11 @@ from oauthlib.oauth2 import AccessDeniedError
 import requests
 from ring_doorbell import Auth, Ring
 
+from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import Platform, __version__
 from homeassistant.core import HomeAssistant, ServiceCall, callback
 from homeassistant.helpers.event import async_track_time_interval
+from homeassistant.helpers.typing import ConfigType
 from homeassistant.util.async_ import run_callback_threadsafe
 
 _LOGGER = logging.getLogger(__name__)
@@ -35,7 +37,7 @@ PLATFORMS = [
 ]
 
 
-async def async_setup(hass, config):
+async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the Ring component."""
     if DOMAIN not in config:
         return True
@@ -51,7 +53,7 @@ async def async_setup(hass, config):
     return True
 
 
-async def async_setup_entry(hass, entry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up a config entry."""
 
     def token_updater(token):
@@ -125,7 +127,7 @@ async def async_setup_entry(hass, entry):
     return True
 
 
-async def async_unload_entry(hass, entry):
+async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Unload Ring entry."""
     if not await hass.config_entries.async_unload_platforms(entry, PLATFORMS):
         return False
diff --git a/homeassistant/components/roomba/__init__.py b/homeassistant/components/roomba/__init__.py
index 2911f46d55d..dc16e92b237 100644
--- a/homeassistant/components/roomba/__init__.py
+++ b/homeassistant/components/roomba/__init__.py
@@ -6,6 +6,7 @@ import async_timeout
 from roombapy import RoombaConnectionError, RoombaFactory
 
 from homeassistant import exceptions
+from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
     CONF_DELAY,
     CONF_HOST,
@@ -13,6 +14,7 @@ from homeassistant.const import (
     CONF_PASSWORD,
     EVENT_HOMEASSISTANT_STOP,
 )
+from homeassistant.core import HomeAssistant
 
 from .const import (
     BLID,
@@ -27,7 +29,7 @@ from .const import (
 _LOGGER = logging.getLogger(__name__)
 
 
-async def async_setup_entry(hass, config_entry):
+async def async_setup_entry(hass: HomeAssistant, config_entry: ConfigEntry) -> bool:
     """Set the config entry up."""
     # Set up roomba platforms with config entry
 
@@ -114,7 +116,7 @@ async def async_update_options(hass, config_entry):
     await hass.config_entries.async_reload(config_entry.entry_id)
 
 
-async def async_unload_entry(hass, config_entry):
+async def async_unload_entry(hass: HomeAssistant, config_entry: ConfigEntry) -> bool:
     """Unload a config entry."""
     unload_ok = await hass.config_entries.async_unload_platforms(
         config_entry, PLATFORMS
diff --git a/homeassistant/components/roon/__init__.py b/homeassistant/components/roon/__init__.py
index 94c51abf705..133598070c2 100644
--- a/homeassistant/components/roon/__init__.py
+++ b/homeassistant/components/roon/__init__.py
@@ -1,12 +1,14 @@
 """Roon (www.roonlabs.com) component."""
+from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import CONF_HOST
+from homeassistant.core import HomeAssistant
 from homeassistant.helpers import device_registry as dr
 
 from .const import DOMAIN
 from .server import RoonServer
 
 
-async def async_setup_entry(hass, entry):
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up a roonserver from a config entry."""
     hass.data.setdefault(DOMAIN, {})
     host = entry.data[CONF_HOST]
@@ -26,7 +28,7 @@ async def async_setup_entry(hass, entry):
     return True
 
 
-async def async_unload_entry(hass, entry):
+async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Unload a config entry."""
     roonserver = hass.data[DOMAIN].pop(entry.entry_id)
     return await roonserver.async_reset()
diff --git a/homeassistant/components/route53/__init__.py b/homeassistant/components/route53/__init__.py
index 095f3cc4539..4f17b507560 100644
--- a/homeassistant/components/route53/__init__.py
+++ b/homeassistant/components/route53/__init__.py
@@ -10,9 +10,10 @@ import requests
 import voluptuous as vol
 
 from homeassistant.const import CONF_DOMAIN, CONF_TTL, CONF_ZONE
-from homeassistant.core import ServiceCall
+from homeassistant.core import HomeAssistant, ServiceCall
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.event import track_time_interval
+from homeassistant.helpers.typing import ConfigType
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -42,7 +43,7 @@ CONFIG_SCHEMA = vol.Schema(
 )
 
 
-def setup(hass, config):
+def setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the Route53 component."""
     domain = config[DOMAIN][CONF_DOMAIN]
     records = config[DOMAIN][CONF_RECORDS]
diff --git a/homeassistant/components/rpi_camera/__init__.py b/homeassistant/components/rpi_camera/__init__.py
index a854338ee78..ffa21b55180 100644
--- a/homeassistant/components/rpi_camera/__init__.py
+++ b/homeassistant/components/rpi_camera/__init__.py
@@ -2,7 +2,9 @@
 import voluptuous as vol
 
 from homeassistant.const import CONF_FILE_PATH, CONF_NAME
+from homeassistant.core import HomeAssistant
 from homeassistant.helpers import config_validation as cv, discovery
+from homeassistant.helpers.typing import ConfigType
 
 from .const import (
     CONF_HORIZONTAL_FLIP,
@@ -63,7 +65,7 @@ CONFIG_SCHEMA = vol.Schema(
 )
 
 
-def setup(hass, config):
+def setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the rpi_camera integration."""
     config_domain = config[DOMAIN]
     hass.data[DOMAIN] = {
diff --git a/homeassistant/components/rpi_gpio/__init__.py b/homeassistant/components/rpi_gpio/__init__.py
index b8f8bed05a6..94336980fa6 100644
--- a/homeassistant/components/rpi_gpio/__init__.py
+++ b/homeassistant/components/rpi_gpio/__init__.py
@@ -6,6 +6,8 @@ from homeassistant.const import (
     EVENT_HOMEASSISTANT_STOP,
     Platform,
 )
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.typing import ConfigType
 
 DOMAIN = "rpi_gpio"
 PLATFORMS = [
@@ -15,7 +17,7 @@ PLATFORMS = [
 ]
 
 
-def setup(hass, config):
+def setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the Raspberry PI GPIO component."""
 
     def cleanup_gpio(event):
diff --git a/homeassistant/components/rpi_pfio/__init__.py b/homeassistant/components/rpi_pfio/__init__.py
index 45b3e98d977..625e506b13d 100644
--- a/homeassistant/components/rpi_pfio/__init__.py
+++ b/homeassistant/components/rpi_pfio/__init__.py
@@ -2,13 +2,15 @@
 import pifacedigitalio as PFIO
 
 from homeassistant.const import EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.typing import ConfigType
 
 DOMAIN = "rpi_pfio"
 
 DATA_PFIO_LISTENER = "pfio_listener"
 
 
-def setup(hass, config):
+def setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the Raspberry PI PFIO component."""
     pifacedigital = PFIO.PiFaceDigital()
     hass.data[DATA_PFIO_LISTENER] = PFIO.InputEventListener(chip=pifacedigital)
diff --git a/homeassistant/components/rss_feed_template/__init__.py b/homeassistant/components/rss_feed_template/__init__.py
index fb830bccee7..3b88f9c0288 100644
--- a/homeassistant/components/rss_feed_template/__init__.py
+++ b/homeassistant/components/rss_feed_template/__init__.py
@@ -5,7 +5,9 @@ from aiohttp import web
 import voluptuous as vol
 
 from homeassistant.components.http import HomeAssistantView
+from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.typing import ConfigType
 
 CONTENT_TYPE_XML = "text/xml"
 DOMAIN = "rss_feed_template"
@@ -36,7 +38,7 @@ CONFIG_SCHEMA = vol.Schema(
 )
 
 
-def setup(hass, config):
+def setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the RSS feed template component."""
     for (feeduri, feedconfig) in config[DOMAIN].items():
         url = f"/api/rss_template/{feeduri}"