Document NotFound for Interaction original_message methods

discord/interactions.py

@@ -255,9 +255,10 @@ class Interaction:
 
         Fetches the original interaction response message associated with the interaction.
 
-        If the interaction response was :meth:`InteractionResponse.send_message` then this would
-        return the message that was sent using that response. Otherwise, this would return
-        the message that triggered the interaction.
+        If the interaction response was a newly created message (i.e. through :meth:`InteractionResponse.send_message`
+        or :meth:`InteractionResponse.defer`, where ``thinking`` is ``True``) then this returns the message that was sent
+        using that response. Otherwise, this returns the message that triggered the interaction (i.e.
+        through a component).
 
         Repeated calls to this will return a cached value.
 
@@ -267,6 +268,8 @@ class Interaction:
             Fetching the original response message failed.
         ClientException
             The channel for the message could not be resolved.
+        NotFound
+            The interaction response message does not exist.
 
         Returns
         --------
@@ -342,6 +345,8 @@ class Interaction:
         -------
         HTTPException
             Editing the message failed.
+        NotFound
+            The interaction response message does not exist.
         Forbidden
             Edited a message that is not yours.
         TypeError
@@ -393,6 +398,8 @@ class Interaction:
         -------
         HTTPException
             Deleting the message failed.
+        NotFound
+            The interaction response message does not exist or has already been deleted.
         Forbidden
             Deleted a message that is not yours.
         """