chore(deps): update dependency ty to v0.0.64

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
ty (changelog)	==0.0.63 → ==0.0.64

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Release Notes

astral-sh/ty (ty)

v0.0.64

Compare Source

Released on 2026-07-27.

Bug fixes

• Fix identity narrowing for NewTypes (#​26439)
• Make reachability analysis idempotent (#​27163)

LSP server

• Fix ParamSpec declaration hover and type navigation (#​27183)
• Implement LSP textDocument/implementation request (#​25410)
• Introduce shared primitives for parsing backticks in docstrings (#​26928)
• Render NumPy docstrings as structured Markdown (#​25925)

CLI

• Add --exclude-scripts and --include-scripts (#​27169)
• Discover uv workspace roots (#​25551)

Diagnostics

• Add a lint rule for combined abstract and final decorators (#​26932)
• Change --add-ignore to add space after the colon for ty: ignore (#​27120)
• Fix missing-override-decorator suggestion before Python 3.12 (#​27166)
• Reuse full call diagnostics for implicit setter calls (#​27115)

Configuration

• Allow unresolved unused venv home paths (#​27162)
• Simplify script metadata query (#​27121)

Core type checking

• Decorate only overload implementation signatures (#​27147)
• Don't consider known-instance types, generic aliases or non-singleton special-form types to be single-valued (#​27137)
• Improve identity comparison inference for singleton types (#​27126)
• Improve tuple membership and rich comparison inference (#​27164)
• Model walrus bindings from comprehensions (#​26466)
• Narrow tagged unions using identity comparisons (#​27130)
• Preserve Self in __new__ calls (#​27003)
• Preserve receiver constraints when binding overloaded methods (#​27038)
• Support generic manual PEP 695 type aliases (#​27083)
• Treat bivariance as covariant (#​24319)

Performance

• Avoid cycles when resolving ModuleType globals (#​27182)
• Avoid expanding optional enum comparisons (#​27105)
• Avoid repeated inference when copying mixed TypedDict unions (#​27108)
• Improve importer performance (#​27159)
• Improve union and intersection builder performance (#​27167)

Contributors

• @​perfloop-agent
• @​carljm
• @​lerebear
• @​Gankra
• @​TrapsterDK
• @​MichaReiser
• @​thejchap
• @​mtshiba
• @​denyszhak
• @​charliermarsh
• @​AlexWaygood

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📚 Documentation preview 📚: https://objctypes--651.org.readthedocs.build/en/651/