code: public function getPublishedUrl($path)
      {
          $path = Yii::getAlias($path);
  
          if (isset($this->_published[$path])) {
              return $this->_published[$path][1];
          }
          if (is_string($path) && ($path = realpath($path)) !== false) {
              return $this->baseUrl . '/' . $this->hash($path) . (is_file($path) ? '/' . basename($path) : '');
          }
  
          return false;
      }
docs: Returns the URL of a published file path.
  This method does not perform any publishing. It merely tells you
  if the file path is published, what the URL will be to access it.
  @param string $path directory or file path being published
  @return string|false string the published URL for the file or directory. False if the file or directory does not exist.