code: func (b *RWSetBuilder) AddToWriteSet(ns string, key string, value []byte) {
  	nsPubRwBuilder := b.getOrCreateNsPubRwBuilder(ns)
  	nsPubRwBuilder.writeMap[key] = newKVWrite(key, value)
  }
docs: // AddToWriteSet adds a key and value to the write-set