code: def test_seed_argument(self):
      graph = lf_shc()
      rs = nx.coloring.strategy_random_sequential
      c1 = nx.coloring.greedy_color(
          graph, lambda g, c: rs(g, c, seed=1)
      )
      for u, v in graph.edges:
          assert c1[u] != c1[v]
  
imports: import itertools
  import pytest
  import networkx
label_desc: Use image node_id 6 for calling the TestColoring obj's underlying member method code with example usage: obj.test_seed_argument() without return types