What is the best way to tell if the node I am using is exposing the Parity
One way I know if is to
call a contract on Kovan and look for a revert reason that says to expose the
trace methods, but this requires an RPC call and is not explicit (the
call may fail for other reasons). Additionally, different clients (geth, party, etc.) return error messages, so this is not reliable. Is there a way to do this explicitly and/or without making an RPC call?