Function headless_lms_models::exercise_slide_submissions::get_course_exercise_slide_submission_counts_by_weekday_and_hour

pub async fn get_course_exercise_slide_submission_counts_by_weekday_and_hour(
    conn: &mut PgConnection,
    course: &Course
) -> ModelResult<Vec<ExerciseSlideSubmissionCountByWeekAndHour>>