code: @Override
    public ApiFuture<Table> modifyFamiliesAsync(ModifyColumnFamiliesRequest request) {
      com.google.bigtable.admin.v2.ModifyColumnFamiliesRequest modifyColumnRequestProto =
          request.toProto(instanceName.getProjectId(), instanceName.getInstanceId());
  
      return ApiFutureUtil.transformAndAdapt(delegate.modifyColumnFamilyAsync(modifyColumnRequestProto),
          new Function<com.google.bigtable.admin.v2.Table, Table>() {
        @Override
        public Table apply(com.google.bigtable.admin.v2.Table tableProto) {
          return Table.fromProto(tableProto);
        }
      });
    }
docs: {@inheritDoc}