How to filter by custom condition (SQLAlchemy ORM)?

Question

ORM

Good day!
I am rewriting my application, namely the interaction with the database, from raw SQL queries in my class to SQLAlchemy ORM.

Faced such problem:
1) There is a table events where there is a column run_date: datetime.
2) You need to select all events from the table where (run_date - datetime.now()).days < 1.

I'm new to Alchemy, so I'm asking here. How can I implement this selection through ORM?

Thanks in advance!