code: def test_arithm_op_context_manager_enabled():
      eager.arithmetic(True)
      tl_1 = tensors.TensorListCPU(np.ones((8, 16, 16)))
      tl_2 = tensors.TensorListCPU(np.ones((8, 16, 16)))
  
      assert np.array_equal(
          (tl_1 + tl_2).as_array(),
          np.full(shape=(8, 16, 16), fill_value=2),
      )
      eager.arithmetic(False)
  
file_path: DALI/dali/test/python/test_eager_operators.py
imports: import numpy
  import os
  from nvidia.dali import fn
  from nvidia.dali import pipeline_def
  from nvidia.dali import ops
  from nvidia.dali import tensors
  from nvidia.dali.experimental import eager
  from nose_utils import assert_raises, raises
  from test_utils import get_dali_extra_path
label_desc: Use image node_id 4 for calling a global function with example usage: test_arithm_op_context_manager_enabled() without return types