How to create a clean postgres DB for testing with sqlalchemy

Question

I use it in postgres for system development.

When testing, I would like to create a clean DB and proceed with the test based on it. Is it possible with postgres?

In the case of sqlite, it is possible to create a temporary database by coding as follows.

engine = create_engine('sqlite:///./test_temp.db', echo=False)

_session_factory = scoped_session(
    sessionmaker(autocommit=False, autoflush=False, bind=engine)
)

How can I achieve this with postgres?