added a generic command for getting the single person with the most of a certain emoji

msg.py

@@ -139,6 +139,15 @@ class MsgData:
         )
         return res
 
+    async def biggest_single(self, client: discord.Client, emoji: str, days: int) -> str:
+        data = self.emoji_totals(emoji_name=emoji, days=days)
+        username = data.index[0]
+        reacted_msgs = self.emoji_messages(emoji_name=emoji, days=days)
+        d = reacted_msgs.set_index('display_name')['user id'].drop_duplicates().to_dict()
+        user: discord.User = await client.fetch_user(user_id=d[username])
+        LOGGER.info(f'User: {user.mention}')
+        return f'{user.mention} with {data.iloc[0]["total"]:.0f} over the past {int(days)} days'
+
 async def message_df(client: discord.Client, **kwargs):
     return pd.DataFrame(
         [message_dict(m) async for m in message_gen(client, **kwargs)]
@@ -213,7 +222,7 @@ def emoji_messages(msg_df, react_df, emoji_name: str, days: int = 10) -> pd.Data
 
 
 def emoji_totals(edf: pd.DataFrame) -> pd.DataFrame:
-    totals = edf.groupby('display_name').sum()['count'].sort_values(ascending=False)
+    totals = edf.groupby('display_name').sum()['count'].sort_values(ascending=False).apply(int)
     max_channels = (
         edf
             .groupby(['display_name', 'channel'])