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PartialDeep type

Like Partial but recursive

Signature:

export declare type PartialDeep<T> = T extends Builtin
? T
: T extends Map<infer K, infer V>
? Map<PartialDeep<K>, PartialDeep<V>>
: T extends ReadonlyMap<infer K, infer V>
? ReadonlyMap<PartialDeep<K>, PartialDeep<V>>
: T extends WeakMap<infer K, infer V>
? WeakMap<PartialDeep<K>, PartialDeep<V>>
: T extends Set<infer U>
? Set<PartialDeep<U>>
: T extends ReadonlySet<infer U>
? ReadonlySet<PartialDeep<U>>
: T extends WeakSet<infer U>
? WeakSet<PartialDeep<U>>
: T extends Array<infer U>
? T extends IsTuple<T>
? {
    [K in keyof T]?: PartialDeep<T[K]>;
}
: Array<PartialDeep<U>>
: T extends Promise<infer U>
? Promise<PartialDeep<U>>
: T extends {}
? {
    [K in keyof T]?: PartialDeep<T[K]>;
}
: Partial<T>;

References: PartialDeep

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