code: def create(self, request, *args, **kwargs):
          
          return super(CustomerViewSet, self).create(request, *args, **kwargs)
docs: A new customer can only be created:
  
           - by users with staff privilege (is_staff=True);
           - by organization owners if OWNER_CAN_MANAGE_CUSTOMER is set to True;
  
          Example of a valid request:
  
          .. code-block:: http
  
              POST /api/customers/ HTTP/1.1
              Content-Type: application/json
              Accept: application/json
              Authorization: Token c84d653b9ec92c6cbac41c706593e66f567a7fa4
              Host: example.com
  
              {
                  "name": "Customer A",
                  "native_name": "Customer A",
                  "abbreviation": "CA",
                  "contact_details": "Luhamaa 28, 10128 Tallinn",
              }