Add stubs for tree-sitter-languages

stubs/tree-sitter-languages/@tests/stubtest_allowlist.txt

@@ -0,0 +1,5 @@
+# No idea what this is, seems to be auto-generated
+tree_sitter_languages.core.__test__
+
+# Fails to import and is not supposed to be imported, but stubtest finds it somehow
+tree_sitter_languages.languages

stubs/tree-sitter-languages/METADATA.toml

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+version = "1.3.*"
+requires = ["types-tree-sitter"]
+
+[tool.stubtest]
+ignore_missing_stub = false

stubs/tree-sitter-languages/tree_sitter_languages/__init__.pyi

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+from .core import get_language as get_language, get_parser as get_parser
+
+__version__: str
+__title__: str
+__author__: str
+__license__: str
+__copyright__: str

stubs/tree-sitter-languages/tree_sitter_languages/core.pyi

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+from tree_sitter import Language, Parser
+
+def get_language(language: str) -> Language: ...
+def get_parser(language: str) -> Parser: ...