code: func (b *RWSetBuilder) AddToPvtAndHashedWriteSet(ns string, coll string, key string, value []byte) {
  	kvWrite, kvWriteHash := newPvtKVWriteAndHash(key, value)
  	b.getOrCreateCollPvtRwBuilder(ns, coll).writeMap[key] = kvWrite
  	b.getOrCreateCollHashedRwBuilder(ns, coll).writeMap[key] = kvWriteHash
  }
docs: // AddToPvtAndHashedWriteSet adds a key and value to the private and hashed write-set