check is added for the report_to variable in TrainingArguments (huggi…

…ngface#35403)

check for report_to variable is added

src/transformers/integrations/integration_utils.py

@@ -2157,6 +2157,17 @@ def on_train_end(self, args, state, control, **kwargs):
 
 
 def get_reporting_integration_callbacks(report_to):
+    if report_to is None:
+        return []
+
+    if isinstance(report_to, str):
+        if "none" == report_to:
+            return []
+        elif "all" == report_to:
+            report_to = get_available_reporting_integrations()
+        else:
+            report_to = [report_to]
+
     for integration in report_to:
         if integration not in INTEGRATION_TO_CALLBACK:
             raise ValueError(