code: def test_random_labeled_tree_n_zero():
      """Tests if n = 0 then the NetworkXPointlessConcept exception is raised."""
      with pytest.raises(nx.NetworkXPointlessConcept):
          T = nx.random_labeled_tree(0, seed=1234)
      with pytest.raises(nx.NetworkXPointlessConcept):
          T = nx.random_labeled_rooted_tree(0, seed=1234)
  
file_path: networkx/networkx/generators/tests/test_trees.py
imports: import random
  import pytest
  import networkx
  from networkx.utils import arbitrary_element, graphs_equal
label_desc: Use image node_id 7 for calling a global function with example usage: test_random_labeled_tree_n_zero() without return types