code: def build_test_graph(num_nodes, num_rels, edges):
      src, rel, dst = edges.transpose()
      print("Test graph:")
      return build_graph_from_triplets(
          num_nodes, num_rels, (src, rel, dst)
      )
  
file_path: dgl/examples/tensorflow/rgcn/utils.py
imports: import dgl
  import numpy
  import tensorflow
label_desc: Use image node_id 7 for calling a global function with example usage: build_test_graph(num_nodes, num_rels, edges) and returns: build_graph_from_triplets