`tempfile.NamedTemporaryFile`'s return type (`_TemporaryFileWrapper`) extends `Any`

[DetachHead]

import tempfile

with tempfile.NamedTemporaryFile() as file:
    reveal_type(file) # tempfile._TemporaryFileWrapper[builtins.bytes]
    file.asdfasdf # no error

https://mypy-play.net/?mypy=latest&python=3.10&flags=show-error-context%2Cshow-error-codes%2Cstrict%2Ccheck-untyped-defs%2Cdisallow-any-decorated%2Cdisallow-any-expr%2Cdisallow-any-explicit%2Cdisallow-any-generics%2Cdisallow-any-unimported%2Cdisallow-incomplete-defs%2Cdisallow-subclassing-any%2Cdisallow-untyped-calls%2Cdisallow-untyped-decorators%2Cdisallow-untyped-defs%2Cno-implicit-optional%2Cno-implicit-reexport%2Clocal-partial-types%2Cstrict-equality%2Cwarn-incomplete-stub%2Cwarn-redundant-casts%2Cwarn-return-any%2Cwarn-unreachable%2Cwarn-unused-configs%2Cwarn-unused-ignores&gist=ef2074a29b833738372beb1008fd3ead

tested with both mypy and pyright

[srittau]

_TemporaryFileWrapper doesn't extend any, but has a __getattr__() returning Any. This matches the implementation, and would be hard, but not impossible to change: We could look into the actual file object created by the various TemporaryFile functions and copy their attributes over to _TemporaryFileWrapper.