code: def visualize_model(graph_ir):
      vgraph = graphviz.Digraph("G", filename="vgraph", format="jpg")
      convert_to_visualize(graph_ir, vgraph)
      vgraph.render()
  
label_desc: Use image node_id 2 for calling a global function with example usage: visualize_model(graph_ir) without return types