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// `Disposable` was added to TypeScript's standard lib types in version 5.2.
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// To support older TypeScript versions, define an empty `Disposable` interface.
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// Users won't be able to use `using`/`Symbol.dispose` without upgrading to 5.2,
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// but this will ensure type checking on older versions still passes.
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// TypeScript's interface merging will ensure our empty interface is effectively
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// ignored when `Disposable` is included in the standard lib.
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interface Disposable {}