Update durhamtrees.py

durhamtrees.py

@@ -148,7 +148,7 @@ class DurhamTrees(GeneratorBasedBuilder):
 
 
 
-    def _generate_examples(self, class1_data_file, class1_geojson_file, class2_data_file, parquet_file, split):
+    def _generate_examples(self, class1_data_file, class1_geojson_file, class2_data_file, split):
         class1_examples = list(self._generate_examples_from_class1(class1_data_file, class1_geojson_file))
         class2_examples = list(self._generate_examples_from_class2(class2_data_file))