code: def test_int8_conv2d(target, expected_impl):
      target = tvm.target.Target(target)
      dtype = "int8"
  
      selected_impl = _get_conv2d_impl(dtype, target)
      assert selected_impl == expected_impl
  
file_path: tvm/tests/python/relay/strategy/test_select_implementation.py
imports: import pytest
  import numpy
  from unittest.mock import MagicMock
  import tvm
  from tvm import relay
  from tvm import te
  from tvm.relay.testing import run_infer_type, run_opt_pass
  import tvm.testing
  from tvm import topi
label_desc: Use image node_id 3 for calling a global function with example usage: test_int8_conv2d(target, expected_impl) without return types