code: def test_get_data(self):
      embedding = self.get_star_embedding(4)
      data = embedding.get_data()
      data_cmp = {0: [3, 2, 1], 1: [0], 2: [0], 3: [0]}
      assert data == data_cmp
  
imports: import pytest
  import networkx
  from networkx.algorithms.planarity import check_planarity_recursive, get_counterexample, get_counterexample_recursive
label_desc: Use image node_id 2 for calling the TestPlanarEmbeddingClass obj's underlying member method code with example usage: obj.test_get_data() without return types