async fn insert_student(
conn: &mut PgConnection,
user_id: Uuid,
email: &str,
first_name: &str,
last_name: &str,
) -> Result<SeededStudent>async fn insert_student(
conn: &mut PgConnection,
user_id: Uuid,
email: &str,
first_name: &str,
last_name: &str,
) -> Result<SeededStudent>