public static Isotope <Unit> waitUntilClickable(IWebElement el, TimeSpan timeout) =>
from _ in Isotope.waitUntil(
from _1a in info($"Checking clickability " + prettyPrint(el))
from d in displayed(el)
from e in enabled(el)
from o in obscured(el)
from _2a in info($"Displayed: {d}, Enabled: {e}, Obscured: {o}")
select d&& e && (!o),
identity)
select unit;
