code: def visualize(labels, g):
      pos = nx.spring_layout(g, seed=1)
      plt.figure(figsize=(8, 8))
      plt.axis("off")
      nx.draw_networkx(
          g,
          pos=pos,
          node_size=50,
          cmap=plt.get_cmap("coolwarm"),
          node_color=labels,
          edge_color="k",
          arrows=False,
          width=0.5,
          style="dotted",
          with_labels=False,
      )
  
imports: import os
  import dgl
  import torch
  import torch
  import torch.nn
  import torch.nn.functional
  from dgl.data import citation_graph
  import matplotlib.pyplot
  import networkx
  import dgl.function
  from torch.utils.data import DataLoader
label_desc: Use image node_id 1 for calling a global function with example usage: visualize(labels, g) without return types