code: func (c *Overlay) SetInspectMode(mode string, highlightConfig *OverlayHighlightConfig) (*gcdmessage.ChromeResponse, error) {
  	var v OverlaySetInspectModeParams
  	v.Mode = mode
  	v.HighlightConfig = highlightConfig
  	return c.SetInspectModeWithParams(&v)
  }
docs: // SetInspectMode - Enters the 'inspect' mode. In this mode, elements that user is hovering over are highlighted. Backend then generates 'inspectNodeRequested' event upon element selection.
  // mode - Set an inspection mode. enum values: searchForNode, searchForUAShadowDOM, captureAreaScreenshot, none
  // highlightConfig - A descriptor for the highlight appearance of hovered-over nodes. May be omitted if `enabled == false`.