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import type {  LegacyServerLike,  ListenerLike,  NativeServerLike,  ServerLike,} from "./types.ts";
export const isString = (thing: unknown): thing is string =>  typeof thing === "string";
export const isListener = (thing: unknown): thing is ListenerLike =>  thing instanceof Object && thing !== null && "listen" in thing;
const isCommonServer = (thing: unknown): thing is ServerLike =>  thing instanceof Object && thing !== null && "close" in thing;
export const isStdLegacyServer = (thing: unknown): thing is LegacyServerLike =>  isCommonServer(thing) &&  "listener" in thing;
export const isStdNativeServer = (thing: unknown): thing is NativeServerLike =>  isCommonServer(thing) &&  "addrs" in thing;
export const isServer = (thing: unknown): thing is ServerLike =>  isStdLegacyServer(thing) || isStdNativeServer(thing);