diff --git a/butterrobot/db.py b/butterrobot/db.py
index 5a6a130..547a1f2 100644
--- a/butterrobot/db.py
+++ b/butterrobot/db.py
@@ -3,8 +3,8 @@ from typing import Union
 
 import dataset
 
-from butterrobot.config import DATABASE_PATH, SECRET_KEY
-from butterrobot.objects import Channel, ChannelPlugin, User
+from butterrobot.config import SECRET_KEY, DATABASE_PATH
+from butterrobot.objects import User, Channel, ChannelPlugin
 
 db = dataset.connect(DATABASE_PATH)
 
@@ -25,7 +25,7 @@ class Query:
             yield cls.obj(**row)
 
     @classmethod
-    def get(cls, **kwargs) -> "class":
+    def get(cls, **kwargs):
         """
         Returns the object representation of an specific row in a table.
         Allows retrieving object by multiple columns.
@@ -153,7 +153,9 @@ class ChannelPluginQuery(Query):
 
     @classmethod
     def get_from_channel_id(cls, channel_id):
-        yield from [cls.obj(**row) for row in db[cls.tablename].find(channel_id=channel_id)]
+        yield from [
+            cls.obj(**row) for row in db[cls.tablename].find(channel_id=channel_id)
+        ]
 
     @classmethod
     def delete_by_channel(cls, channel_id):
diff --git a/butterrobot/platforms/base.py b/butterrobot/platforms/base.py
index f92d665..a5d778e 100644
--- a/butterrobot/platforms/base.py
+++ b/butterrobot/platforms/base.py
@@ -36,7 +36,7 @@ class Platform:
 
     @classmethod
     @abstractmethod
-    def parse_incoming_message(cls, request) -> 'Message':
+    def parse_incoming_message(cls, request):
         """
         Parses the incoming request and returns a :class:`butterrobot.objects.Message` instance.
         """
@@ -52,7 +52,7 @@ class Platform:
 
     @classmethod
     @abstractmethod
-    def parse_channel_from_message(cls, channel_raw) -> 'Channel':
+    def parse_channel_from_message(cls, channel_raw):
         """
         Extracts the Channel raw data from the message received in the incoming webhook.
         """
@@ -62,6 +62,6 @@ class Platform:
 class PlatformMethods:
     @classmethod
     @abstractmethod
-    def send_message(cls, message: 'Message'):
+    def send_message(cls, message):
         """Method used to send a message via the platform"""
         pass
diff --git a/tests/test_objects.py b/tests/test_objects.py
index 1388dbd..ffab485 100644
--- a/tests/test_objects.py
+++ b/tests/test_objects.py
@@ -7,9 +7,11 @@ def test_channel_has_enabled_plugin_ok():
         platform_channel_id="debug",
         channel_raw={},
         plugins={
-            "enabled": ChannelPlugin(id=1, channel_id="test", plugin_id="enabled", enabled=True),
+            "enabled": ChannelPlugin(
+                id=1, channel_id="test", plugin_id="enabled", enabled=True
+            ),
             "existant": ChannelPlugin(id=2, channel_id="test", plugin_id="existant"),
-        }
+        },
     )
     assert not channel.has_enabled_plugin("non.existant")
     assert not channel.has_enabled_plugin("existant")