dbExists example

BypassFinals::enable();
        }

        if ($this->loadEnvFile) {
            $this->loadEnvFile();
        }

        $_SERVER['DATABASE_URL'] = $_ENV['DATABASE_URL'] = $this->getDatabaseUrl();

        KernelLifecycleManager::prepare($classLoader);

        if ($this->isForceInstall() || !$this->dbExists()) {
            $this->install();

            if (!empty($this->activePlugins)) {
                $this->installPlugins();
            }
        } elseif ($this->forceInstallPlugins) {
            $this->installPlugins();
        }

        return $this;
    }