code: def test_astar_admissible_heuristic_with_cutoff(self):
      heuristic_values = {"s": 36, "y": 4, "x": 0, "u": 0, "v": 0}
  
      def h(u, v):
          return heuristic_values[u]
  
      assert nx.astar_path_length(self.XG, "s", "v") == 9
      assert nx.astar_path_length(self.XG, "s", "v", heuristic=h) == 9
      assert (
          nx.astar_path_length(
              self.XG, "s", "v", heuristic=h, cutoff=12
          )
          == 9
      )
      assert (
          nx.astar_path_length(self.XG, "s", "v", heuristic=h, cutoff=9)
          == 9
      )
      with pytest.raises(nx.NetworkXNoPath):
          nx.astar_path_length(self.XG, "s", "v", heuristic=h, cutoff=8)
  
imports: import pytest
  import networkx
  from networkx.utils import pairwise
label_desc: Use image node_id 15 for calling the TestAStar obj's underlying member method code with example usage: obj.test_astar_admissible_heuristic_with_cutoff() and returns: heuristic_values