Bump pytype from 2021.10.11 to 2021.10.18

[dependabot]

Bumps pytype from 2021.10.11 to 2021.10.18.

Changelog

Sourced from pytype's changelog.

Version 2021.10.18

New features and updates:

• Completely remove the --attribute-variable-annotations flag. This was a no-op as of version 2021.10.11.
• Enable --preserve-union-macros by default and make the flag a no-op. It will be removed in the next release.

Bug fixes:

• Enum overlay: fix crash due to loading __new__ from a PyTDClass.
• Enum overlay: use ClassVar to differentiate enum class attributes.
• Fix a parser bug involving nested class name conflicts.
• Fix a crash when lazily loading a missing submodule.

Version 2021.10.11

New features and updates:

• Update pytype and typing annotation stubs for features added in attrs 21.1.0.
• Enable --attribute-variable-annotations by default and make the flag a no-op. It will be removed in the next release.
• The --use-enum-overlay flag is ready for general use. Enable this flag for precise typing of the stdlib enum library.

Bug fixes:

• Support quoted types as annotations in pyi files.
• Add precise overloads for the map function.
• Support Ellipsis annotations in pyi files.
• Preserve None in unions containing Any.
• Fix a pyi import printing bug.
• Improve ignored-abstractmethod error message.
• Teach convert._load_late_type to handle nested classes.

Version 2021.10.04

Bug fixes:

• Call init_class instead of instantiate when adding assertIsInstance bindings.
• Use the namedtuple 'defaults' argument when generating new signature.
• Do not raise a parser error for unrecognised decorators.
• Merge BaseValue.cls and BaseValue.get_class().
• Check Instance.maybe_missing_members earlier during attribute access.
• Fix a bug in matching callables with TypeVar parameters.

Version 2021.09.27

New features and updates:

• Drop target Python 3.5 support.
• Remove the no-op --enforce-noniterable-strings flag.
• Support arbitrary python values for typing.Annotated in pyi files.
• Add more extensive type support for attr converters.

... (truncated)

Commits

• b5a40b8 Merge pull request #1034 from google/google_sync
• 6a58467 Prepare a PyPI release.
• c5e34b8 Changed PrintVisitor to group explicit imports with the ones collected from t...
• 990958d Always enable the --preserve-union-macros flag.
• 9859a48 Fix a crash when lazily loading a missing submodule.
• 5b93b0b Add an --allow-recursive-types flag.
• aa67aaa Only use enum output mode when the enum overlay is active.
• aee09b6 Merge pull request #1031 from google/google_sync
• c0dd119 Enable type-checking on files whose type errors have been fixed.
• 6f1c05d Remove extra newline in pytype/abstract/init.py.
• Additional commits viewable in compare view

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