Allow PartialMessage to work with DM channels as well

discord/channel.py

@@ -1096,6 +1096,28 @@ class DMChannel(discord.abc.Messageable, Hashable):
         base.manage_messages = False
         return base
 
+    def get_partial_message(self, message_id):
+        """Creates a :class:`PartialMessage` from the message ID.
+
+        This is useful if you want to work with a message and only have its ID without
+        doing an unnecessary API call.
+
+        .. versionadded:: 1.6
+
+        Parameters
+        ------------
+        message_id: :class:`int`
+            The message ID to create a partial message for.
+
+        Returns
+        ---------
+        :class:`PartialMessage`
+            The partial message.
+        """
+
+        from .message import PartialMessage
+        return PartialMessage(channel=self, id=message_id)
+
 class GroupChannel(discord.abc.Messageable, Hashable):
     """Represents a Discord group channel.