diff --git a/disagreement/client.py b/disagreement/client.py
index b5c06ae..bd15b0b 100644
--- a/disagreement/client.py
+++ b/disagreement/client.py
@@ -920,12 +920,12 @@ class Client:
             await view._start(self)
             components_payload = view.to_components_payload()
         elif components:
-            from .models import ActionRow as ActionRowModel
+            from .models import Component as ComponentModel
 
             components_payload = [
                 comp.to_dict()
                 for comp in components
-                if isinstance(comp, ActionRowModel)
+                if isinstance(comp, ComponentModel)
             ]
 
         message_data = await self._http.send_message(
diff --git a/disagreement/ext/commands/core.py b/disagreement/ext/commands/core.py
index 2091aaf..21dfa7b 100644
--- a/disagreement/ext/commands/core.py
+++ b/disagreement/ext/commands/core.py
@@ -128,7 +128,7 @@ class CommandContext:
 
     async def reply(
         self,
-        content: str,
+        content: Optional[str] = None,
         *,
         mention_author: Optional[bool] = None,
         **kwargs: Any,
@@ -240,6 +240,7 @@ class CommandHandler:
         return self.commands.get(name.lower())
 
     def add_cog(self, cog_to_add: "Cog") -> None:
+        from .cog import Cog
         if not isinstance(cog_to_add, Cog):
             raise TypeError("Argument must be a subclass of Cog.")