docs: def list_vpnservices(retrieve_all=True, profile=None, **kwargs):
      '''
      Fetches a list of all configured VPN services for a tenant
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' neutron.list_vpnservices
  
      :param retrieve_all: True or False, default: True (Optional)
      :param profile: Profile to build on (Optional)
      :return: List of VPN service
      '''
      conn = _auth(profile)
      return conn.list_vpnservices(retrieve_all, **kwargs)