static loadPluginByHubId(hubId) {
    const configLocation = path.resolve(
      pluginsPath,
      normalizePath(hubId),
      "plugin.json"
    );
    if (!this.isValidLocation(configLocation)) return;
    const config = safeJsonParse(fs.readFileSync(configLocation, "utf8"));
    return new ImportedPlugin(config);
  }
Gets the imported plugin handler.
@param {string} hubId - The hub ID of the plugin.
@returns {ImportedPlugin} - The plugin handler.