#10132 chore: Use Python 3.13 `Generator` generic type with default `SendType` and `ReturnType` Pull request opened by edgarrmondragon Description SSIA. • https://docs.python.org/3.13/library/typing.html#annotating-generators-and-coroutines • PEP 696 – Type Defaults for Type Parameters Checklist • I have read the contribution guide Was generative AI tooling used to co-author this PR? • Yes (please specify the tool below) Related Issues • Closes #XXXX Summary by Sourcery Adopt Python 3.13-compatible Generator and AsyncGenerator type annotations across core modules and tests, using collections.abc with typing_extensions fallbacks, and simplify generator signatures to rely on default Send/Return type parameters. Enhancements: • Standardize generator and async generator type hints to use the Python 3.13 Generator/AsyncGenerator generics with default Send/Return types throughout the codebase. • Introduce conditional imports that prefer collections.abc.Generator/AsyncGenerator on Python 3.13+ and fall back to typing_extensions for earlier versions. • Align several contextmanager and fixture return annotations from Iterator/AsyncIterator to Generator/AsyncGenerator and adjust some APIs to return Iterable where appropriate (e.g., list_all_files). meltano/meltano