Use environement variables with os.environ function

spanish_medica_llm.py

@@ -542,7 +542,7 @@ def configAndRunTraining(basemodel, dataset, eval_dataset, tokenizer):
 
 def run_training_process():
     #Loggin to Huggin Face
-    login(token = HG_FACE_TOKEN)
+    login(token = os.environ('HG_FACE_TOKEN'))
     tokenizer = loadSpanishTokenizer()
     medicalSpanishDataset =  loadSpanishDataset()
     train_dataset, eval_dataset, test_dataset = splitDatasetInTestValid(