code: def test_cond_partial_eval(self):
      def f(x):
          res = lax.cond(True, lambda op: op * x, lambda op: op + x, x)
          return res
  
      self.ConvertAndCompare(jax.grad(f), 1.0)
  
imports: from absl.testing import absltest
  import jax
  import jax.lax
  import jax.numpy
  from jax._src import test_util
  import numpy
  from jax.experimental.jax2tf.tests import tf_test_util
  from jax import config
label_desc: Use image node_id 3 for calling the ControlFlowOpsTest obj's underlying member method code with example usage: obj.test_cond_partial_eval() and returns: res