code: def make_test_caller(self, p_error, max_gq, gq_resolution=1):
      options = _reference_model_options(p_error, max_gq, gq_resolution)
      return vcf_candidate_importer.VcfCandidateImporter(
          options, testdata.TRUTH_VARIANTS_VCF, use_cache_table=False
      )
  
file_path: deepvariant/deepvariant/vcf_candidate_importer_test.py
imports: from unittest import mock
  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 variant_utils
  from deepvariant import testdata
  from deepvariant import vcf_candidate_importer
  from deepvariant.labeler import labeled_examples_to_vcf
  from deepvariant.protos import deepvariant_pb2
label_desc: Use image node_id 1 for calling the VcfCandidateImporterTests obj's underlying member method code with example usage: obj.make_test_caller(p_error, max_gq, gq_resolution) and returns: vcf_candidate_importer