Update constants.py

add load hf-token from .env

constants.py

@@ -1,5 +1,9 @@
 from datasets import load_dataset
+from dotenv import load_dotenv
+import os
 
+load_dotenv()
+HF_TOKEN=os.environ['HF_TOKEN']
 
 # Constants values
 LEADERBOARD_PATH = "atlasia/Open-Arabic-Dialect-Identification-Leaderboard"
@@ -86,7 +90,7 @@ default_languages = [
 ]
 
 # Load eval dataset
-eval_dataset = load_dataset(DATA_PATH, split='test')  
+eval_dataset = load_dataset(DATA_PATH, split='test',token=HF_TOKEN)  
  
 # Supported dialects
 all_target_languages = list(eval_dataset.unique("dialect"))