def method_missing method, *args, &block
        message = ::NRSER::Message.new method, *args, &block
        @current = message.send_to @current
        @updates << ::NRSER::HistoryUpdate.new \
          message: message,
          response: @current
      end
def method_missing method, *args, &block
        message = ::NRSER::Message.new method, *args, &block
        @current = message.send_to @current
        @updates << ::NRSER::HistoryUpdate.new \
          message: message,
          response: @current
      end
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