Fix a bug

ethereum_statistics.py

@@ -14,8 +14,8 @@ class EthereumStatistics(datasets.GeneratorBasedBuilder):
         downloaded_files = dl_manager.download_and_extract(urls)
 
         return [
-            datasets.SplitGenerator(name=datasets.Split("call_tracer"), gen_kwargs={"filepath": downloaded_files["call_tracer"]}),
-            datasets.SplitGenerator(name=datasets.Split("prestate_tracer"), gen_kwargs={"filepath": downloaded_files["prestate_tracer"]}),
+            datasets.SplitGenerator(name=datasets.Split("callTracer"), gen_kwargs={"filepath": downloaded_files["callTracer"]}),
+            datasets.SplitGenerator(name=datasets.Split("prestateTracer"), gen_kwargs={"filepath": downloaded_files["prestateTracer"]}),
         ]
 
     def _generate_examples(self, filepath):