try fix download

binding_affinity.py

@@ -157,7 +157,7 @@ class BindingAffinity(datasets.ArrowBasedBuilder):
 
         df = pd.read_parquet(filepath)
         for k, row in df.iterrows():
-            yield id_, {
+            yield k, {
                 "seq": row["seq"],
                 "smiles": row["smiles"],
                 "neg_log10_affinity_M": row["neg_log10_affinity_M"],
@@ -168,4 +168,4 @@ class BindingAffinity(datasets.ArrowBasedBuilder):
         self, filepath, split  # method parameters are unpacked from `gen_kwargs` as given in `_split_generators`
     ):
         df = pd.read_parquet(filepath)
-        return df
+        yield split, df