class_docstr: Helper for constructing regular Conv2ds. Always sets groups to 1. We set the reference
  kernel layout here as we must pick something, but the x86 implementation supports several.
code: def setup_method(self):
      self.ref_kernel_layout = "HWIO"
  
file_path: tvm/tests/python/relay/strategy/arm_cpu/test_conv2d.py
imports: from test_generalized_conv2d import GeneralizedConv2dTests
  from tvm.testing import fixture, main, parameter, parameters
label_desc: Use image node_id 2 for calling the Conv2dTests obj's underlying member method code with example usage: obj.setup_method() without return types