code: public function forget($args = [])
      {
          if (!empty($args)) {
              if (is_array($args)) {
                  $args = implode('_', $args);
              }
              if (empty($this->forgetful)) {
                  $this->forgetful = get_class_methods($this);
              }
  
              foreach ($this->forgetful as $method) {
                  $cacheKey = str_replace('\\', '_', get_class($this).'_'.$method.'_');
                  $this->forgetByKey($cacheKey);
                  $cacheKey = str_replace('\\', '_', get_class($this).'_'.$method.'_'.$args);
                  $this->forgetByKey($cacheKey);
              }
          } else {
              $key = $this->getRememberKey();
              $this->forgetByKey($key);
          }
  
          return $this;
      }
docs: Forget the cached value.
  
  @param array $args
  
  @return mixed