code: @Benchmark
    @BenchmarkMode(Mode.SampleTime)
    @OutputTimeUnit(TimeUnit.NANOSECONDS)
    public Context doWrite(ContextState state, Blackhole bh) {
      return state.context.withValues(
          state.key1, state.val,
          state.key2, state.val,
          state.key3, state.val,
          state.key4, state.val);
    }
docs: Perform the write operation.