Cut-down reproduce for mypy NamedTuple & generic Callable crash

__init__.py

# empty

consumer.py

from typing import TypeVar

from .progress_logger import ProgressLogger

# Workaround: uncomment this line.
# Note: doesn't work if the name differs from the TypeVar name in
# progress_logger.py
# T = TypeVar('T')

# Originally (approximately):
# class Foo:
#     def bar(self, other: str, *, progress_logger: ProgressLogger) -> None:
#         pass

def bar(progress_logger: ProgressLogger) -> None:
    pass

progress_logger.py

from typing import TypeVar, Callable, Iterable, NamedTuple

T = TypeVar('T')

# Originally:
# ProgressLogger = NamedTuple('ProgressLogger', [
#     ('info', Callable[[str], None]),
#     ('progress', Callable[[Iterable[T]], Iterable[T]]),
# ])

# class ProgressLogger(NamedTuple):
#     progress: Callable[[Iterable[T]], Iterable[T]]

class ProgressLogger(NamedTuple):
    progress: Callable[[T], T]