declarative_base functions have been move

The ``declarative_base()`` function is now available as sqlalchemy.orm.declarative_base(). (deprecated since: 2.0) (Background on SQLAlchemy 2.0 at: https://sqlalche.me/e/b8d9)
    Base = declarative_base()

docs_src/sql_databases/sql_app_py310/database.py

@@ -1,6 +1,5 @@
 from sqlalchemy import create_engine
-from sqlalchemy.ext.declarative import declarative_base
-from sqlalchemy.orm import sessionmaker
+from sqlalchemy.orm import sessionmaker, declarative_base
 
 SQLALCHEMY_DATABASE_URL = "sqlite:///./sql_app.db"
 # SQLALCHEMY_DATABASE_URL = "postgresql://user:password@postgresserver/db"