11 lines
246 B
TypeScript
11 lines
246 B
TypeScript
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interface Alpha<T> {
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takesArgOfT(arg: T): Alpha<T>;
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makeBetaOfNumber(): Beta<number>;
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}
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interface Beta<T> extends Alpha<T> {
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}
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var alpha: Alpha<number>;
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var betaOfNumber = alpha.makeBetaOfNumber();
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betaOfNumber.takesArgOfT(5);
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