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.
docstr: Using a fixture instead of a parameter stops Pytest from adding the (redundant) number of
  groups to the name of each test.
code: def groups(self):
      """Using a fixture instead of a parameter stops Pytest from adding the (redundant) number of
      groups to the name of each test."""
      return 1
  
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 1 for calling the Conv2dTests obj's underlying member method code with example usage: obj.groups() and returns: int