class_docstr: Graph Dataloader
      
class_docstr_tok: ["Graph","Dataloader"]
docstr: __getitem__
docstr_tok: ["__getitem__"]
code: def __getitem__(self, idx):
      """__getitem__"""
      if isinstance(idx, collections.Iterable):
          return [self[bidx] for bidx in idx]
      else:
          return self.dataset[idx]
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from __future__ import unicode_literals
  from __future__ import absolute_import
  import os
  import sys
  import time
  import argparse
  import numpy
  import collections
  import paddle
  import paddle.fluid
  import paddle.fluid.layers
  import pgl
  from pgl.utils import mp_reader
  from pgl.utils.logger import log
label_desc: Use image node_id 5 for calling the GraphDataloader obj's underlying member method code with example usage: obj.__getitem__(idx) and returns: unknown, self