docs: def UpdateProtoResources(self, status):
      """Save cpu and network stats, check limits."""
      user_cpu = status.cpu_time_used.user_cpu_time
      system_cpu = status.cpu_time_used.system_cpu_time
      self.context.client_resources.cpu_usage.user_cpu_time += user_cpu
      self.context.client_resources.cpu_usage.system_cpu_time += system_cpu
  
      user_cpu_total = self.context.client_resources.cpu_usage.user_cpu_time
      system_cpu_total = self.context.client_resources.cpu_usage.system_cpu_time
  
      self.context.network_bytes_sent += status.network_bytes_sent
  
      if self.runner_args.cpu_limit:
        if self.runner_args.cpu_limit < (user_cpu_total + system_cpu_total):
          # We have exceeded our limit, stop this flow.
          raise FlowRunnerError("CPU limit exceeded.")
  
      if self.runner_args.network_bytes_limit:
        if (self.runner_args.network_bytes_limit <
            self.context.network_bytes_sent):
          # We have exceeded our byte limit, stop this flow.
          raise FlowRunnerError("Network bytes limit exceeded.")