A way to turn off parallel execution (for easier comparison)

[simonw]

Would be neat if you could toggle the parallel execution on and off, to better demonstrate the performance difference that it implements.

Would happen in this code that calls gather():

asyncinject/asyncinject/__init__.py

Lines 114 to 123 in 4734897

	awaitables = [
	instance._registry[name](
	instance,
	_results=results,
	**{k: v for k, v in results.items() if k in instance._graph[name]},
	)
	for name in awaitable_names
	]
	awaitable_results = await asyncio.gather(*awaitables)
	results.update(dict(zip(awaitable_names, awaitable_results)))

[simonw]

Implemented most of this in #9 - but it needs tests and documentation.

[simonw]

Will be easier to write tests for this if I solve #7 first.