_:nd8935749f79c4c85b2b49f74c393c903xb0
<http://schema.org/itemListElement>
_:nd8935749f79c4c85b2b49f74c393c903xb2
<https://developers.google.cn/ad-manager/api/reference/v202108/ProposalService.ProposalLineItemProgrammaticError?hl=ar>