code: def get_tags_of_invoice_per_page(self, invoice_id, per_page=1000, page=1):
          
          return self._get_resource_per_page(
              resource=INVOICE_TAGS,
              per_page=per_page,
              page=page,
              params={'invoice_id': invoice_id},
          )
docs: Get tags of invoice per page
  
          :param invoice_id: the invoice id
          :param per_page: How many objects per page. Default: 1000
          :param page: Which page. Default: 1
          :return: list