I'VE FINISHED!

src/commands/command_subscribe.py

@@ -1,14 +1,16 @@
 from bson.objectid import ObjectId
 import os
 
-def subscribe_command(message, bot, collection_id, OBJECTID_idlist):
+def subscribe_command(message, bot, collection_id):
     chat_id = message.chat.id #Get chat id
     send_message = bot.send_message(chat_id, "✅ You have been successfully subscribed to Epic Games Store Free Games notifications!") #Send message
     #Get the ids of all users who write /subscribe
     take_id = message.from_user.id #Get user id
     #Insert the id of the user who writes /subscribe in the database
+    find_document_username = list(collection_id.find({}, {"_id": 1}))
+    array_username = find_document_username[0]["_id"]
     collection_id.update_one(
-        { "_id": ObjectId(OBJECTID_idlist)},
+        { "_id": ObjectId(array_username)},
             {
                 "$push": { "username": take_id }
             }