#18364 Allow gathering/joining multiple `async def` coroutines ala `MultiGet` Issue created by huonw Is your feature request related to a problem? Please describe. In #18303 (comment), we identify that there's no native way for rule code to run multiple Python

async def

coroutines concurrently, similar to Python's

asyncio.gather

(or

std::future::join!

in Rust). Pants'

MultiGet

is related, but only supports `Get`s specifically. Being able to do this would allow embarrassingly parallel invocations of rule helpers in a loop to achieve maximum concurrency. Once this is done, the flake8 rule added in #18303 should be generalised to flag

await _some_helper()

inside a loop, in addition to `await Get(...)`/`await MultiGet(...)` in a loop. Describe the solution you'd like Some mechanism to schedule coroutines (and preferably arbitrary `Awaitable`/`Future` instances) to run concurrently. Describe alternatives you've considered N/A Additional context N/A pantsbuild/pants