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    Type Alias OneKey<K, V, KK>

    OneKey: {
        [P in K]: ({ [Q in P]: V } & { [Q in Exclude<KK, P>]?: undefined }) extends infer O
            ? { [Q in keyof O]: O[Q] }
            : never
    }[K]

    Record with only one-key

    Type Parameters

    • K extends keyof any
    • V
    • KK extends keyof any = K

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