Evm_node_lib_prod.Helpersval now : unit -> Mavryk_base.TzPervasives.Time.Protocol.tnow () returns the current time.
with_timing event k computes how much time k () takes to be computed and advertises it with event.
val unwrap_error_monad :
(unit -> 'a Mavryk_base.TzPervasives.tzresult Lwt.t) ->
'a Lwt.tunwrap_error_monad f execute f and fails with a Failure when the error monad returns an error.