[Python] asyncio run coroutine from a synchronous function

How can I call task2 from func without declaring func async and awaiting it? My first thought was to create a thread and use run_coroutine_threadsafe but it deadlocks. Same as not using a thread. Do I have to start a new loop?

import asyncio
from threading import Thread

async def task2():
print("starting task2...")
await asyncio.sleep(1)
print("finished task2.")
return "done"

def func(loop=None):
print("running func...")
if not loop:
loop = asyncio.get_running_loop()
assert loop
future = asyncio.run_coroutine_threadsafe(
task2(),
loop)
result = future.result()
print(f"{result=}")
print("done func...")

async def task1():
print("starting task1...")
await asyncio.sleep(1)
# func()
loop = asyncio.get_running_loop()
t = Thread(target=func, args=(loop,))
t.start()
t.join()
print("finished task1.")

if __name__ == '__main__':
asyncio.run(task1())

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