Function pickWhereKeys

pickWhereKeys<T extends {}, K extends string | number | symbol>(
    x: T,
    predicate: (k: string | number | symbol) => k is K,
): {
    -readonly [P in string | number | symbol as P extends K ? P<P> : never]: T[P]
}

pickWhereKeys<T extends {}, K extends string | number | symbol>(
    x: T,
    predicate: (k: string | number | symbol) => k is K,
): {
    -readonly [P in string | number | symbol as P extends K ? P<P> : never]: T[P]
}

pickWhereKeys<T extends {}>(
    x: T,
    predicate: (k: string | number | symbol) => boolean,
): Partial<T>