Document unpin_chat_message

pyrogram/client/methods/chats/unpin_chat_message.py

@@ -22,7 +22,22 @@ from ...ext import BaseClient
 
 class UnpinChatMessage(BaseClient):
     def unpin_chat_message(self, chat_id: int or str):
-        # TODO: Docstrings
+        """Use this method to unpin a message in a supergroup or a channel.
+        You must be an administrator in the chat for this to work and must have the "can_pin_messages" admin
+        right in the supergroup or "can_edit_messages" admin right in the channel.
+
+        Args:
+            chat_id (``int`` | ``str``):
+                Unique identifier (int) or username (str) of the target chat.
+                For a private channel/supergroup you can use its *t.me/joinchat/* link.
+
+        Returns:
+            True on success.
+
+        Raises:
+            :class:`Error <pyrogram.Error>`
+            ``ValueError``: If a chat_id doesn't belong to a supergroup or a channel.
+        """
         peer = self.resolve_peer(chat_id)
 
         if isinstance(peer, types.InputPeerChannel):