class PoolConnection extends Connectionimport { PoolConnection } from "https://deno.land/x/mysql@v2.12.1/src/pool.ts"; Propertiesprivate_idle: booleanprivateoptional_idleTimer: numberoptional_pool: ConnectionPoolMethodsenterIdle()Should be called by the pool. exitIdle()Should be called by the pool. removeFromPool()Remove the connection from the pool permanently, when the connection is not usable. returnToPool()