code: def test_tg_creation_routines(self):
      s = nxt.left_d_threshold_sequence(5, 7)
      s = nxt.right_d_threshold_sequence(5, 7)
      s1 = nxt.swap_d(s, 1.0, 1.0)
      s1 = nxt.swap_d(s, 1.0, 1.0, seed=1)
  
imports: import pytest
  import networkx
  import networkx.algorithms.threshold
  from networkx.algorithms.isomorphism.isomorph import graph_could_be_isomorphic
label_desc: Use image node_id 16 for calling the TestGeneratorThreshold obj's underlying member method code with example usage: obj.test_tg_creation_routines() without return types