class_docstr: GraphDataset for torch DataLoader
class_docstr_tok: ["GraphDataset","for","torch","DataLoader"]
code: def __init__(self, graph_list, tensor):
      self.graph_list = graph_list
      self.tensor = tensor
  
imports: import os.path
  from copy import deepcopy
  import dgl
  import torch
  from dgl import add_self_loop, DGLGraph, NID
  from dgl.dataloading.negative_sampler import Uniform
  from torch.utils.data import DataLoader, Dataset
  from tqdm import tqdm
  from utils import drnl_node_labeling
label_desc: Use image node_id 1 to create a new GraphDataSet object from inherited base classes: Dataset with example: obj = GraphDataSet(graph_list, tensor)