public static Var find(Symbol nsQualifiedSym)
{
if (nsQualifiedSym.Namespace == null)
throw new ArgumentException("Symbol must be namespace-qualified");
Namespace ns = Namespace.find(Symbol.intern(nsQualifiedSym.Namespace));
if (ns == null)
throw new ArgumentException("No such namespace: " + nsQualifiedSym.Namespace);
return ns.FindInternedVar(Symbol.intern(nsQualifiedSym.Name));
}