code: def test_relaxed_caveman_graph():
      G = nx.relaxed_caveman_graph(4, 3, 0)
      assert len(G) == 12
      G = nx.relaxed_caveman_graph(4, 3, 1)
      assert len(G) == 12
      G = nx.relaxed_caveman_graph(4, 3, 0.5)
      assert len(G) == 12
      G = nx.relaxed_caveman_graph(4, 3, 0.5, seed=42)
      assert len(G) == 12
  
imports: import pytest
  import networkx
label_desc: Use image node_id 3 for calling a global function with example usage: test_relaxed_caveman_graph() without return types