run_all.py

async def run_all(*async_fns):
    results = [None] * len(async_fns)
    
    async def run_one(i, async_fn):
        results[i] = await async_fn()
        
    async with trio.open_nursery() as nursery:
        for i, async_fn in enumerate(async_fns):
            nursery.start_soon(run_one, i, async_fn)
            
    return results

# Usage:
results = await run_all(fn1, fn2)

# Or:
from functools import partial
results = await run_all(partial(fn, arg1, arg2, kw="whatever"), partial(fn, arg))