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types/express/index.d.ts issue: An interface may only extend a class or another interface · Issue #21140 · DefinitelyTyped/DefinitelyTyped · GitHub
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Request: Allow abstract classes to implement MappedTypes that are instantiated with type parameters. · Issue #21326 · microsoft/TypeScript · GitHub
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How one Interface can extend another Interface? | Interface extends Interface | Java Tutorial - YouTube
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