class_docstr: Wrapper class of Dataset class that performs multi-threaded data loading
code: def load_data(self):
      return self
  
imports: import sys
  import os
  import pathlib
  import logging
  import time
  import argparse
  from collections import namedtuple
  import numpy
  import torch
  import torch.utils.data
  import nni
  from nni.utils import merge_parameter
  from pix2pixlib.data.aligned_dataset import AlignedDataset
  from pix2pixlib.models.pix2pix_model import Pix2PixModel
  from base_params import get_base_params
label_desc: Use image node_id 2 for calling the CustomDatasetDataLoader obj's underlying member method code with example usage: obj.load_data() and returns: self