await db.execute(
    update(Student).where(age>20),
    [stud.dict() for stud in students]
)
await db.flush()

class Student(Base):
    __tablename__ = "students"
    id = Column(
        String,
        primary_key=True,
        default=lambda: uuid.uuid4().hex,
    )
    name = Column(String, nullable=False)
    age = Column(Integer, nullable=False)

[
    {"id": 1, "name": "Eugene H. Krabs"},
    {"id": 2, "name": "Spongebob Squarepants"},
    {"id": 3, "name": "Patrick Star"},
    {"id": 4, "name": "Eugene H. Krabs"}
]

await db.execute(
    update(Student),
    [stud.dict() for stud in students]
)
await db.flush()