MySQL multiple table UPDATE query using sqlalchemy core?

from sqlalchemy_app import engine

import sqlalchemy as sa

metadata = sa.MetaData()

receipt = sa.Table(
    "receipt",
    metadata,
    sa.Column("id", sa.Integer, primary_key=True),
    sa.Column("something", sa.Integer),
)

returns = sa.Table(
    "returns",
    metadata,
    sa.Column("id", sa.Integer, primary_key=True),
    sa.Column("receipt_id", sa.Integer, sa.ForeignKey('receipt.id')),
    sa.Column("somethingelse", sa.Integer)
)


if __name__ == "__main__":
    metadata.drop_all(engine)
    metadata.create_all(engine)
    with engine.connect() as conn:
        conn.execute(
            receipt.insert(
                values=[{"id": 1, "something": 1}]
            )
        )
        conn.execute(
            returns.insert(
                values=[{"id": 1, "receipt_id": 1, "somethingelse": 99}]
            )
        )
        conn.execute(
            sa.update(receipt)
            .values({receipt.c.something: 3, returns.c.somethingelse: 4})
            .where(sa.and_(receipt.c.id == 1, returns.c.id == 1))
        )

2019-08-17 11:27:39,573 INFO sqlalchemy.engine.base.Engine UPDATE receipt, returns SET returns.somethingelse=%(returns_somethingelse)s, receipt.something=%(something)s WHERE receipt.id = %(id_1)s AND returns.id = %(id_2)s
2019-08-17 11:27:39,582 INFO sqlalchemy.engine.base.Engine {'returns_somethingelse': 4, 'something': 3, 'id_1': 1, 'id_2': 1}

UPDATE receipt SET somethingelse=:returns_somethingelse, something=:something FROM returns WHERE receipt.id = :id_1 AND returns.id = :id_2

from sqlalchemy.dialects import mysql
print(statement.compile(dialect=mysql.dialect())

UPDATE receipt, returns SET returns.somethingelse=%s, receipt.something=%s WHERE receipt.id = %s AND returns.id = %s