IN Clause in SQLAlchemy ORM Query Object

To retrieve a items based on list of ids use

class Post(Base):
    __tablename__ = "post"
    id = Column(Integer, primary_key=True, autoincrement=True)
    user_id = Column(Integer, ForeignKey("user.id"))
    content = Column(String(255),nullable=False)
    created_date = Column(TIMESTAMP(timezone=False), nullable=False, default=datetime.now())
    updated_date = Column(TIMESTAMP(timezone=False), nullable=False, default=datetime.now())

# Now we need to retrieve posts by ids 1,2 & 3
# Query to retrieve based on ID
posts = db_session.query(Post).filter(Post.id.in_((1,2,3))).all()