code: public static <S extends Sequence<S>> Mutations<S> shiftIndelsAtHomopolymers(S seq1, Mutations<S> mutations) {
          return shiftIndelsAtHomopolymers(seq1, 0, mutations);
      }
docs: This one shifts indels to the left at homopolymer regions Applicable to KAligner data, which normally put indels
  randomly along such regions Required for filterMutations algorithm to work correctly Works inplace
  
  @param seq1      reference sequence for the mutations
  @param mutations array of mutations