code: def test_genotype_from_matched_truth_no_gt_truth_variant_raises(self):
      with self.assertRaisesRegex(
          ValueError, "truth_variant needs genotypes"
      ):
          variant_labeler._genotype_from_matched_truth(
              self.snp,
              test_utils.make_variant(
                  start=10,
                  alleles=["A", "C"],
                  gt=[-1, -1],
              ),
          )
  
file_path: deepvariant/deepvariant/labeler/variant_labeler_test.py
imports: from absl.testing import absltest
  from absl.testing import parameterized
  from third_party.nucleus.io import vcf
  from third_party.nucleus.testing import test_utils
  from third_party.nucleus.util import ranges
  from deepvariant import testdata
  from deepvariant.labeler import variant_labeler
label_desc: Use image node_id 5 for calling the VariantLabelerTest obj's underlying member method code with example usage: obj.test_genotype_from_matched_truth_no_gt_truth_variant_raises() without return types