import asyncio


async def foo():
    await asyncio.sleep(1.0)
    await baz()
    await asyncio.sleep(0.5)


async def bar():
    proc = await asyncio.create_subprocess_shell('sleep 1.0')
    await proc.communicate()


async def baz():
    await asyncio.sleep(1.0)


asyncio.run(foo())
asyncio.run(bar())