code: def __init__(self, csc_graphs, samples_list):
      self.csc_graphs = csc_graphs
      self.samples_list = samples_list
  
imports: import os
  import pdb
  import argparse
  import numpy
  import yaml
  from easydict import EasyDict
  import paddle
  from paddle.io import Dataset
  from pgl.graph import Graph
  from ogb.lsc import MAG240MDataset
  from pgl.utils.logger import log
  from paddle.framework import core
label_desc: Use image node_id 1 to create a new NeighborSampler object from inherited base classes: object with example: obj = NeighborSampler(csc_graphs, samples_list)