code: def create_graph1():
      u = th.tensor([0, 1, 0, 2, 3, 0, 4, 0, 5, 0, 6, 7, 0, 8, 9])
      v = th.tensor([1, 9, 2, 9, 9, 4, 9, 5, 9, 6, 9, 9, 8, 9, 0])
      g = dgl.graph((u, v))
      return g
  
label_desc: Use image node_id 1 for calling a global function with example usage: create_graph1() and returns: g