text: from sqlalchemy import create_engine
  from sqlalchemy.ext.declarative import declarative_base
  from sqlalchemy.orm import sessionmaker
  
  DATABASE_URL = "sqlite:///./worterbuch.db"
  
  engine = create_engine(DATABASE_URL)
  SessionLocal = sessionmaker(bind=engine, autocommit=False, autoflush=False)
  Base = declarative_base()
  
  
  def get_db():
      db = SessionLocal()
      try:
          yield db
      finally:
          db.close()
  