text: from typing import List, Optional
  
  from pydantic import BaseModel
  
  
  # models/schemas base
  class BookmarkBase(BaseModel):
      name: str
      url: str
  
  class BookmarkCreate(BookmarkBase):
      pass
  
  # models/schemas for reading/returning
  class Bookmark(BookmarkBase):
      id: int
  
      class Config:
          orm_mode = True
  
  # transaction schema
  class Transaction(BaseModel):
      status: bool
      message: str
  
  