code: def test_postprocess_variants_extra_args(
      self, postprocess_variants_extra_args, expected_args
  ):
      FLAGS.model_type = "WGS"
      FLAGS.ref = "your_ref"
      FLAGS.sample_name_child = "your_sample_child"
      FLAGS.sample_name_parent1 = "your_sample_parent1"
      FLAGS.sample_name_parent2 = "your_sample_parent2"
      FLAGS.reads_child = "your_bam_child"
      FLAGS.reads_parent1 = "your_bam_parent1"
      FLAGS.reads_parent2 = "your_bam_parent2"
      FLAGS.output_vcf_child = "your_vcf_child"
      FLAGS.output_vcf_parent1 = "your_vcf_parent1"
      FLAGS.output_vcf_parent2 = "your_vcf_parent2"
      FLAGS.output_gvcf_child = "your_gvcf_child"
      FLAGS.output_gvcf_parent1 = "your_gvcf_parent1"
      FLAGS.output_gvcf_parent2 = "your_gvcf_parent2"
      FLAGS.num_shards = 64
      FLAGS.postprocess_variants_extra_args = (
          postprocess_variants_extra_args
      )
      (
          _,
          commands_post_process,
          _,
      ) = self._create_all_commands_and_check_stdout()
  
      self.assertEqual(
          commands_post_process[0],
          "time /opt/deepvariant/bin/postprocess_variants "
          '--ref "your_ref" '
          "--infile "
          '"/tmp/deeptrio_tmp_output/call_variants_output_child.tfrecord.gz" '
          '--outfile "your_vcf_child" '
          "--cpus 0 "
          "--nonvariant_site_tfrecord_path "
          '"/tmp/deeptrio_tmp_output/gvcf_child.tfrecord@64.gz" '
          '--gvcf_outfile "your_gvcf_child" '
          "%s" % expected_args,
      )
  
imports: import io
  from unittest import mock
  from absl import flags
  from absl.testing import absltest
  from absl.testing import flagsaver
  from absl.testing import parameterized
  from deepvariant.opensource_only.scripts import run_deeptrio
label_desc: Use image node_id 13 for calling the RunDeeptrioTest obj's underlying member method code with example usage: obj.test_postprocess_variants_extra_args(postprocess_variants_extra_args, expected_args) without return types