add custom handler and modify pipeline

handler.py

@@ -44,10 +44,8 @@ class EndpointHandler():
     Return:
         A :obj:`list` | `dict`: will be serialized and returned
     """
-    inputs = data.pop("text", data)
-    lang = data.pop("lang", data)
-    if isinstance(inputs, str):
-      inputs = [inputs]
+    inputs = data.pop("inputs", data)
+    lang = data.pop("lang", None)
     
     prediction_p = self.classifier_p(inputs) 
     label = prediction_p[0]['label']