class ServiceUnavailableException
extends HttpException
import { ServiceUnavailableException } from "https://dotland.deno.dev/x/abc@v0.1.10/http_exception.ts";
x/abc/http_exception.ts>ServiceUnavailableException
import { ServiceUnavailableException } from "https://dotland.deno.dev/x/abc@v0.1.10/http_exception.ts";