class JsonStrLenCommand extends Command<(number | null)[], (number | null)[]>import { JsonStrLenCommand } from "https://deno.land/x/upstash_redis@v1.20.1/pkg/commands/json_strlen.ts"; ConstructorsnewJsonStrLenCommand(cmd: [string, string], opts?: CommandOptions<(number | null)[], (number | null)[]>)