async fn load_exercise(
conn: &mut PgConnection,
already_loaded_exercise: Option<Exercise>,
current_user_exercise_state: &UserExerciseState,
) -> ModelResult<Exercise>
async fn load_exercise(
conn: &mut PgConnection,
already_loaded_exercise: Option<Exercise>,
current_user_exercise_state: &UserExerciseState,
) -> ModelResult<Exercise>