code: def unconsume(self, seq):
          '''Subtracts all k-mers in sequence.'''
          for kmer in iter_kmers(seq, self.k, canonical=self.canonical):
              self._decr(kmerf unconsume(self, seq):
          '''Subtracts all k-mers in sequence.'''
          for kmer in iter_kmers(seq, self.k, canonical=self.canonical):
              self._decr(kmer)
docs: Subtracts all k-mers in sequence.