Update plugins/echo.py

plugins/echo.py

@@ -23,8 +23,8 @@ logging.getLogger("pyrogram").setLevel(logging.WARNING)
 async def echo(bot, update):
     logger.info(update.from_user)
     url = update.text
-    youtube_dl_username = None
-    youtube_dl_password = None
+    youtube_dl_username = os.environ.get("YTU", None)
+    youtube_dl_password = os.environ.get("YTP", None)
     file_name = None
 
     if "youtu.be" in url: