Fixes component type checking and import issues

Changes component validation to use the more general ComponentModel instead of ActionRowModel, allowing broader component types to be processed correctly.

Makes reply content parameter optional to improve API flexibility.

Adds missing import for Cog class to prevent runtime errors during cog validation.

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(

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.")