Add deprecation warning to dataset script

german_legal_entity_recognition.py

@@ -1,4 +1,5 @@
 import os
+import warnings
 
 import datasets
 
@@ -53,6 +54,10 @@ class GermanLegalEntityRecognition(datasets.GeneratorBasedBuilder):
     DEFAULT_CONFIG_NAME = _ALL
 
     def _info(self):
+        warnings.warn(
+            "Dataset 'german_legal_entity_recognition' is deprecated and will be deleted. Use 'elenanereiss/german-ler' instead.",
+            FutureWarning,
+        )
         return datasets.DatasetInfo(
             description=_DESCRIPTION,
             features=datasets.Features(