code: def test_filter_alleles_hts_3(self):
      # 1 variant: A:T,G
      ds = hl.import_vcf(resource("filter_alleles/input.vcf"))
  
      self.assertTrue(
          hl.filter_alleles_hts(ds, lambda a, i: a != "G", subset=False)
          .drop("old_alleles", "old_locus", "new_to_old", "old_to_new")
          ._same(
              hl.import_vcf(
                  resource("filter_alleles/keep_allele1_downcode.vcf")
              )
          )
      )
  
imports: import unittest
  import hail
  import hail.expr.aggregators
  from hail.utils.misc import new_temp_file
  from ..helpers import *
  from hail.methods.qc import VEPConfigGRCh37Version85, VEPConfigGRCh38Version95
label_desc: Use image node_id 13 for calling the Tests obj's underlying member method code with example usage: obj.test_filter_alleles_hts_3() without return types