update

the-vault.py

@@ -57,6 +57,7 @@ class TheVaultConfig(datasets.BuilderConfig):
         )
         
         languages = set(languages)
+        split_set = set(split_set) 
         
         assert all([language in _LANG_CONFIGS for language in languages]), f"languages {languages} contains language not in {_LANG_CONFIGS}."
         assert all([split in _SPLIT_CONFIGS for split in split_set]), "split_set {} contains element not in {}.".format(split_set, _SPLIT_CONFIGS)