Update dependency ty to v0.0.27

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
ty (changelog)	==0.0.26 → ==0.0.27

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Release Notes

astral-sh/ty (ty)

v0.0.27

Compare Source

Released on 2026-03-31.

Bug fixes

• Fix panic on debug builds when attempting to provide autocomplete suggestions for list[int]<CURSOR>() (#​24167)
• Fix instance-attribute lookup in methods of protocol classes (#​24213)
• Fix nested global and nonlocal lookups through forwarding scopes (#​24279)
• Fix panic on list[Annotated[()]] (#​24303)
• Fix stack overflow on type A = TypeIs[Callable[[], A]] (#​24245)
• Use _cls as the name of the first argument for synthesized collections.namedtuple constructor methods (#​24333)

LSP server

• Fix semantic token classification for properties accessed on instances (#​24065)
• Grey out unused bindings in the editor (#​23305)

Core type checking

• Add bidirectional type context for TypedDict get() defaults (#​24231)
• Add bidirectional type context for TypedDict pop() defaults (#​24229)
• Add support for functional TypedDict (#​24174, #​24331, #​24295)
• Ban type qualifiers in PEP-695 type aliases (#​24242)
• Enforce Final attribute assignment rules for annotated and augmented writes (#​23880)
• Improve support for Callable type context (#​23888)
• Infer lambda expressions with Callable type context (#​22633)
• Don't incorrectly infer the type of a method as being a singleton type when it's accessed off an instance (#​24039)
• Propagate type context through await expressions (#​24256)
• Resolve union-likes in emitting union attribute errors (#​24263)
• Show the user where the variable was declared as Final when emitting a diagnostic about a Final variable being reassigned (#​24194)

Contributors

• @​carljm
• @​mvanhorn
• @​oconnor663
• @​ibraheemdev
• @​zanieb
• @​denyszhak
• @​Glyphack
• @​charliermarsh
• @​AlexWaygood

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