10 lines
212 B
TypeScript
10 lines
212 B
TypeScript
// Repro from #14794
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interface DataSnapshot<X = {}> {
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child(path: string): DataSnapshot;
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}
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interface Snapshot<T> extends DataSnapshot {
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child<U extends Extract<keyof T, string>>(path: U): Snapshot<T[U]>;
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}
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