class Protobuf::Rpc::Connectors::Zmq

def check_available_snd_timeout
  @check_available_snd_timeout ||= begin
    case
    when ENV.key?("PB_ZMQ_CLIENT_CHECK_AVAILABLE_SND_TIMEOUT") then
      ENV["PB_ZMQ_CLIENT_CHECK_AVAILABLE_SND_TIMEOUT"].to_i
    else
      200 # ms
    end
  end
end