code: def get_lat_lng(self, idx):
      x = self._df.iloc[idx]
      return float(x[self._col_latitude]), float(x[self._col_longitude])
  
imports: import logging
  import os
  import sys
  from argparse import Namespace
  from typing import Any, List
  import pandas
  import torch
  from hydra.experimental import compose, initialize_config_module
  from iopath.common.file_io import g_pathmgr
  from vissl.config import AttrDict
  from vissl.data.dataset_catalog import get_data_files
  from vissl.hooks import default_hook_generator
  from vissl.utils.checkpoint import get_checkpoint_folder
  from vissl.utils.distributed_launcher import launch_distributed
  from vissl.utils.env import set_env_vars
  from vissl.utils.hydra_config import convert_to_attrdict, is_hydra_available, print_cfg
  from vissl.utils.io import load_file, save_file
  from vissl.utils.logger import setup_logging, shutdown_logging
label_desc: Use image node_id 5 for calling the Partitioning obj's underlying member method code with example usage: obj.get_lat_lng(idx) and returns: float,  float