SQLModel Session.exec does not accept separate params argument for textual SQL

In SQLModel 0.0.x, Session.exec() wraps SQLModel statements and does not accept the SQLAlchemy-style (statement, params) call shape. Using Session.exec(text_stmt, params) raises TypeError: Session.exec() takes 2 positional arguments but 3 were given. Verified on 2026-04 with SQLModel 0.0.37 and Python 3.12 while testing server defaults via raw INSERT.

When executing textual SQL with bound parameters in SQLModel tests, call Session.execute(text_sql, params) (or bind parameters on the statement) instead of passing params as a second positional argument to Session.exec(...).