Is there any ways to run without while True?

I like this library, it is simple and easy to use. However, the program process maybe continues to use the system resources like cpu resources.

For example, if I add a print statement after `schedule.run_pending()` like this. The `schedule awake` will be printed every second.

```py
while True:
schedule.run_pending()
print("schedule awake")
time.sleep(1)
```

So is there any ways to make the code to eliminate `while True` loop or make `schedule.run_pending()` block to wait for the next job. And during the idle time, no or few system resources are needed.