code: func (c *CSS) ForcePseudoState(nodeId int, forcedPseudoClasses []string) (*gcdmessage.ChromeResponse, error) {
  	var v CSSForcePseudoStateParams
  	v.NodeId = nodeId
  	v.ForcedPseudoClasses = forcedPseudoClasses
  	return c.ForcePseudoStateWithParams(&v)
  }
docs: // ForcePseudoState - Ensures that the given node will have specified pseudo-classes whenever its style is computed by the browser.
  // nodeId - The element id for which to force the pseudo state.
  // forcedPseudoClasses - Element pseudo classes to force when computing the element's style.