code: func (c *Page) SetDocumentContent(frameId string, html string) (*gcdmessage.ChromeResponse, error) {
  	var v PageSetDocumentContentParams
  	v.FrameId = frameId
  	v.Html = html
  	return c.SetDocumentContentWithParams(&v)
  }
docs: // SetDocumentContent - Sets given markup as the document's HTML.
  // frameId - Frame id to set HTML for.
  // html - HTML content to set.