code: def handle_vcf_calls(vcf_file, data, orig_items):
      
      if not _do_prioritize(orig_items):
          return vcf_file
      else:
          ann_vcf = population.run_vcfanno(vcf_file, data)
          if ann_vcf:
              priority_file = _prep_priority_filter_vcfanno(ann_vcf, data)
              return _apply_priority_filter(ann_vcf, priority_file, data)
          # No data available for filtering, return original file
          else:
              return vcf_file
docs: Prioritize VCF calls based on external annotations supplied through GEMINI.