How to create a slide without shap and default hint text using openxml

Question

When I inserted a slide according to the official tutorial document, I found that the created slide always had a hint text, how can I delete it.

official tutorial document urtl:https://learn.microsoft.com/zh-cn/office/open-xml/how-to-insert-a-new-slide-into-a-presentation?view=openxml-2.8.1