Support of selenium 4: what is the replacement of desiredCap.SetCapability("app", app);

[michelleXIE2014]

Since I am upgrading our project which used winium + selenium to selenium 4
We know selenium does not support DesitedCapabilities any more,
so what is the replacement of the following code?

DesiredCapabilities desiredCap= new DesiredCapabilities(); desiredCap.SetCapability("app", app);

Thank you