Update mc4-sampling.py

mc4-sampling.py

@@ -271,7 +271,7 @@ _N_SHARDS_PER_SPLIT = {
 class Mc4SamplingConfig(datasets.BuilderConfig):
     """BuilderConfig for mC4 Sampling."""
 
-    def __init__(self, *args, languages, **kwargs):
+    def __init__(self, name=None, languages=None, *args, **kwargs):
         """BuilderConfig for mC4 Sampling.
         Args:
             languages (:obj:`List[str]`): list of languages to load
@@ -279,7 +279,7 @@ class Mc4SamplingConfig(datasets.BuilderConfig):
         """
         super().__init__(
             *args,
-            name="+".join(languages),
+            name=name or "+".join(languages),
             **kwargs,
         )
         self.languages = languages