Output cond_a = ops::Placeholder(root.WithOpName("cond_a"), DT_BOOL);
  Output cond_b = ops::Placeholder(root.WithOpName("cond_b"), DT_BOOL);

  Output value = ops::Placeholder(root.WithOpName("value"), DT_FLOAT);

  ops::Switch switch_a(root.WithOpName("switch_a"), value, cond_a);
  ops::Switch switch_b(root.WithOpName("switch_b"), value, cond_b);

  Output tanh_a0 = ops::Tanh(root.WithOpName("tan_a0"), switch_a.output_true);

  Output id0 = ops::Identity(root.WithOpName("id0"), sw.output_false);
  Output id1 = ops::Identity(root.WithOpName("id1"), sw.output_true);

  ops::ControlTrigger ctrl_trigger0(root.WithOpName("ctrl_trigger0"));
  ops::ControlTrigger ctrl_trigger1(root.WithOpName("ctrl_trigger1"));

  Output const0 = ops::Const(root.WithOpName("const0"), 1);
  Output const1 = ops::Const(root.WithOpName("const1"), 2);