const OwningOpRef<ModuleOp> module_op =
      ParseModuleOpString(kXlaCallModuleOpWithQuantizationMethodAttr);
  ASSERT_TRUE(module_op);

  FailureOr<TF::XlaCallModuleOp> xla_call_module_op =
      FindFirstOpFromMainFunc<TF::XlaCallModuleOp>(*module_op);
  ASSERT_TRUE(succeeded(xla_call_module_op));

  // Test that `GetQuantizationMethodOrDefault` returns a valid `Method`
  // corresponding to `"no_quantization {}"`.