code: def create_graph_features():
      # APPNP, ClusterGCN, GCN, PPNP, node_mappers, full_batch_generators
      features = np.array([[1, 1], [1, 0], [0, 1]])
      nodes = pd.DataFrame(features, index=["a", "b", "c"])
      edges = pd.DataFrame(
          [("a", "b"), ("b", "c"), ("a", "c")],
          columns=["source", "target"],
      )
      return StellarGraph(nodes, edges), features
  
imports: from stellargraph import StellarGraph, StellarDiGraph, IndexedArray
  import networkx
  import pandas
  import numpy
  import random
  import pytest
label_desc: Use image node_id 1 for calling a global function with example usage: create_graph_features() and returns: StellarGraph,  features