code: def _make_labeler(self, variants, confident_regions):
      return customized_classes_labeler.CustomizedClassesVariantLabeler(
          truth_vcf_reader=vcf.InMemoryVcfReader(variants),
          confident_regions=confident_regions,
          classes_list=CUSTOMIZED_CLASSES_LIST,
          info_field_name=CUSTOMIZED_INFO_FIELD_NAME,
      )
  
file_path: deepvariant/deepvariant/labeler/customized_classes_labeler_test.py
imports: import collections
  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 third_party.nucleus.util import variant_utils
  from deepvariant import testdata
  from deepvariant.labeler import customized_classes_labeler
  from third_party.nucleus.protos import variants_pb2
  from third_party.nucleus.util import vcf_constants
label_desc: Use image node_id 1 for calling the CustomizedClassesVariantLabelerTest obj's underlying member method code with example usage: obj._make_labeler(variants, confident_regions) and returns: customized_classes_labeler