Variable isPromiseLikeConst

isPromiseLike: TypePredicateFn<
    {
        then<TResult1 = unknown, TResult2 = never>(
            onfulfilled?:
                | ((value: unknown) => TResult1 | PromiseLike<TResult1>)
                | null,
            onrejected?: ((reason: any) => TResult2 | PromiseLike<TResult2>) | null,
        ): PromiseLike<TResult1 | TResult2>;
    },
> = ...

isPromiseLike(Promise.resolve(42)); // true
isPromiseLike({ then: () => {} }); // false
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