public function rules()
    {
        $rules = $this->filterRules(array_merge([
            [['username', 'password'], 'trim'],
            [['username', 'password'], 'required'],
            ['rememberMe', 'boolean'],
            ['password', 'authenticate'],
        ], $this->rulesAddScenario(parent::rules(), 'reset')));

        return $rules;
    }