getLibraryDefinitions example

if (!isset($this->cid)) {
      $this->cid = 'library_info:' . $this->themeManager->getActiveTheme()->getName();
    }

    return $this->cid;
  }

  /** * {@inheritdoc} */
  protected function resolveCacheMiss($key) {
    $this->storage[$key] = $this->getLibraryDefinitions($key);
    $this->persist($key);

    return $this->storage[$key];
  }

  /** * Returns the library definitions for a given extension. * * This also implements libraries-overrides for entire libraries that have * been specified by the LibraryDiscoveryParser. * * @param string $extension * The name of the extension for which library definitions will be returned. * * @return array * The library definitions for $extension with overrides applied. * * @throws \Drupal\Core\Asset\Exception\InvalidLibrariesOverrideSpecificationException */