Classmethod for retrieving a specific instance with sqlalchemy - sqlalchemy

Question

I was trying to make my ORM code a bit more elegant by using classmethods in sqlalchemy and I wanted to make a method called get which would just retrieve a single existing instance of the ORM object with a few parameters. But since it seems I need a session to do it, the only way I could figure out how to do it was to pas the session as a parameter to the get method. It is working but I can't shake the feeling that I am building an antipattern.
Here is my ORM class (simplified):
class GeocellZone(Base):
__tablename__ = "geocell_zone"
__table_args__ = (UniqueConstraint("study_area_id", "version_id", "name"),)
id = Column(Integer, primary_key=True)
study_area_id = Column(Integer, ForeignKey("study_area.id"))
version_id = Column(Integer, ForeignKey("version.id"))
name = Column(Text)
geometry = Column(Geometry(srid=4326))
#classmethod
def get(cls, session, version, study_area, name):
return session.query(cls) \
.filter(cls.study_area_id == study_area.id) \
.filter(cls.version_id == version.id) \
.filter(cls.name == name) \
.first()
And here is what it looks like when I call it in my application:
import os
from sqlalchemy import create_engine, text
from sqlalchemy.orm import sessionmaker
from myapp.orm import *
engine = create_engine(
f"postgresql://{os.getenv('DB_USER')}:{os.getenv('DB_PASS')}#{os.getenv('DB_HOST')}:{os.getenv('DB_PORT')}/{os.getenv('DB_NAME')}",
echo=False
)
session = sessionmaker(bind=engine)()
GeocellZone.get(session, version, study_area, "Antwerpen")
This works, it returns the exact GeocellZone instance that I want. But I feel dirty passing the session to the ORM class like this. Am I overthinking this? Or is there a better way to do this?