code: def test_jax_duck_typing_jax_api_one_int_arg(self):
      API_LIST = ["bincount", "bitwise_not", "invert", "packbits"]
      v = objax.TrainVar(jn.array([1, 2, 3], dtype=jn.int32))
      for name in API_LIST:
          fn = jn.__dict__[name]
          expected = fn(v.value)
          actual = fn(v)
          np.testing.assert_allclose(expected, actual)
  
imports: import unittest
  import numpy
  import jax.numpy
  import objax
label_desc: Use image node_id 11 for calling the TestVariable obj's underlying member method code with example usage: obj.test_jax_duck_typing_jax_api_one_int_arg() without return types