egirlskey/src/@types/lookup-dns-cache.d.ts

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declare module 'lookup-dns-cache' {
type IPv4 = 4;
type IPv6 = 6;
type Family = IPv4 | IPv6 | undefined;
interface IRunOptions {
family?: Family;
all?: boolean;
}
type RunCallback = (error: Error | null, address?: string | string[], family?: Family) => void;
export function lookup(hostname: string, options: IRunOptions | Family, callback: RunCallback): {} | undefined;
export function lookup(hostname: string, callback: RunCallback): {} | undefined;
}