Imports removed incorrectly with Generic class type annotation

Example code where a used import is incorrectly removed by autoflake:

from __future__ import annotations

from .scheduled_events import ScheduledEventUser

class _AsyncIterator(AsyncIterator[T]):
    ...

class ScheduledEventUserIterator(_AsyncIterator["ScheduledEventUser"]):
    ...

Expected: The ScheduledEventUser import should not be removed

Actual behavior: ScheduledEventUser gets removed even though it is used

(Source file for context - https://github.com/nextcord/nextcord/blob/master/nextcord/iterators.py)

[fsouza]

Hmmm that’s surprising. I definitely have code in that style at work and don’t run into this issue. I’ll investigate it. Thanks for reporting!

[fsouza]

Gotcha, yeah I think that’s our best option for now.