求大佬告知如何序列化对象

export default class Book implements  rpc.Parcelable{ 
  
  public bookId:number; 
  public bookName:string ; 
  
  constructor(bookId:number, bookName: string) { 
    this.bookId = bookId; 
    this.bookName = bookName; 
  } 
  
  marshalling(messageSequence: rpc.MessageSequence): boolean { 
    messageSequence.writeInt(this.bookId); 
    messageSequence.writeString(this.bookName); 
    return true; 
  } 
  
  unmarshalling(messageSequence: rpc.MessageSequence): boolean { 
    this.bookId = messageSequence.readInt(); 
    this.bookName = messageSequence.readString(); 
    return true; 
  } 
}