code: def _single_variant_stats(
      variants, vaf_available=False, vcf_reader=None
  ):
      return [
          _get_variant_stats(
              v, vaf_available=vaf_available, vcf_reader=vcf_reader
          )
          for v in variants
      ]
  
imports: import collections
  import itertools
  import math
  import numpy
  from third_party.nucleus.util import variant_utils
  from third_party.nucleus.util import variantcall_utils
  from deepvariant import vcf_stats_vis
label_desc: Use image node_id 5 for calling a global function with example usage: _single_variant_stats(variants, vaf_available, vcf_reader) and returns: unknown