docs: def plugin_installed(name):
      '''
      .. versionadded:: 2016.11.0
  
      Return if the plugin is installed for the provided plugin name.
  
      :param name: The name of the parameter to confirm installation.
      :return: True if plugin exists, False if plugin does not exist.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' jenkins.plugin_installed pluginName
  
      '''
  
      server = _connect()
      plugins = server.get_plugins()
  
      exists = [plugin for plugin in plugins.keys() if name in plugin]
  
      if exists:
          return True
      else:
          return False