class_docstr: Graph Dataloader
      
class_docstr_tok: ["Graph","Dataloader"]
code: def __init__(
      self,
      dataset,
      batch_size,
      seed=0,
      num_workers=1,
      buf_size=1000,
      shuffle=True,
  ):
      self.shuffle = shuffle
      self.seed = seed
      self.num_workers = num_workers
      self.buf_size = buf_size
      self.batch_size = batch_size
      self.dataset = dataset
  
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 1 to create a new GraphDataloader object from inherited base classes: object with example: obj = GraphDataloader(dataset, batch_size, seed, num_workers, buf_size, shuffle)