code: def transform_dataframe(
      self, dataframe: pd.DataFrame
  ) -> pd.DataFrame:
      processed_df = super().transform_dataframe(dataframe)
      # convert float labels (0.0, 1.0) to binary labels
      processed_df["isHate"] = processed_df["isHate"] >= 0.5
      processed_df["isHate"] = processed_df["isHate"].astype(int)
      return processed_df
  
imports: import pandas
  from ludwig.datasets.loaders.dataset_loader import DatasetLoader
label_desc: Use image node_id 2 for calling the EthosBinaryLoader obj's underlying member method code with example usage: obj.transform_dataframe(dataframe) and returns: processed_df