code: def __getitem__(self, item):
      row = self.df.iloc[item, :]
      return {col: row[col] for col in self.df.columns}
  
file_path: transfer-nlp/transfer_nlp/loaders/loaders.py
imports: from torch.utils.data import Dataset, DataLoader
label_desc: Use image node_id 3 for calling the DataFrameDataset obj's underlying member method code with example usage: obj.__getitem__(item) and returns: unknown