code: def run(self):  # noqa: C901
      # TODO: catch exceptions, handle errors, show validation warnings, and make more generic
      sweep_obj = self._api.sweep(self._sweep_id, "{}")
      if sweep_obj:
          sweep_yaml = sweep_obj.get("config")
          if sweep_yaml:
              sweep_config = yaml.safe_load(sweep_yaml)
              if sweep_config:
                  sweep_command = sweep_config.get("command")
                  if sweep_command and isinstance(sweep_command, list):
                      self._sweep_command = sweep_command
  
      # TODO: include sweep ID
      agent = self._api.register_agent(
          socket.gethostname(), sweep_id=self._sweep_id
      )
      agent_id = agent["id"]
  
      try:
          while self._running:
              commands = util.read_many_from_queue(
                  self._queue, 100, self.POLL_INTERVAL
              )
              for command in commands:
                  command["resp_queue"].put(
                      self._process_command(command)
                  )
  
              now = util.stopwatch_now()
              if self._last_report_time is None or (
                  self._report_interval != 0
                  and now
                  > self._last_report_time + self._report_interval
              ):
                  logger.info(
                      "Running runs: %s",
                      list(self._run_processes.keys()),
                  )
                  self._last_report_time = now
              run_status = {}
              for run_id, run_process in list(
                  self._run_processes.items()
              ):
                  poll_result = run_process.poll()
                  if poll_result is None:
                      run_status[run_id] = True
                      continue
                  elif (
                      not isinstance(poll_result, bool)
                      and isinstance(poll_result, int)
                      and poll_result > 0
                  ):
                      self._failed += 1
                      if self.is_flapping():
                          logger.error(
                              "Detected %i failed runs in the first %i seconds, shutting down.",
                              self.FLAPPING_MAX_FAILURES,
                              self.FLAPPING_MAX_SECONDS,
                          )
                          logger.info(
                              "To disable this check set WANDB_AGENT_DISABLE_FLAPPING=true"
                          )
                          self._running = False
                          break
                      if self.is_failing():
                          logger.error(
                              "Detected %i failed runs in a row, shutting down.",
                              self._max_initial_failures,
                          )
                          logger.info(
                              "To change this value set WANDB_AGENT_MAX_INITIAL_FAILURES=val"
                          )
                          self._running = False
                          break
                  logger.info("Cleaning up finished run: %s", run_id)
  
                  # wandb.teardown() was added with wandb service and is a hammer to make
                  # sure that active runs are finished before moving on to another agent run
                  #
                  # In the future, a lighter weight way to implement this could be to keep a
                  # service process open for all the agent instances and inform_finish when
                  # the run should be marked complete.  This however could require
                  # inform_finish on every run created by this process.
                  if hasattr(wandb, "teardown"):
                      exit_code = 0
                      if isinstance(poll_result, int):
                          exit_code = poll_result
                      elif isinstance(poll_result, bool):
                          exit_code = -1
                      wandb.teardown(exit_code)
  
                  del self._run_processes[run_id]
                  self._last_report_time = None
                  self._finished += 1
  
              if (
                  self._count
                  and self._finished >= self._count
                  or not self._running
              ):
                  self._running = False
                  continue
  
              commands = self._api.agent_heartbeat(
                  agent_id, {}, run_status
              )
  
              # TODO: send _server_responses
              self._server_responses = []
              for command in commands:
                  self._server_responses.append(
                      self._process_command(command)
                  )
  
      except KeyboardInterrupt:
          try:
              wandb.termlog(
                  "Ctrl-c pressed. Waiting for runs to end. Press ctrl-c again to terminate them."
              )
              for _, run_process in self._run_processes.items():
                  run_process.wait()
          except KeyboardInterrupt:
              pass
      finally:
          try:
              if not self._in_jupyter:
                  wandb.termlog(
                      "Terminating and syncing runs. Press ctrl-c to kill."
                  )
              for _, run_process in self._run_processes.items():
                  try:
                      run_process.terminate()
                  except OSError:
                      pass  # if process is already dead
              for _, run_process in self._run_processes.items():
                  run_process.wait()
          except KeyboardInterrupt:
              wandb.termlog("Killing runs and quitting.")
              for _, run_process in self._run_processes.items():
                  try:
                      run_process.kill()
                  except OSError:
                      pass
  
imports: import logging
  import multiprocessing
  import os
  import platform
  import queue
  import re
  import signal
  import socket
  import subprocess
  import sys
  import time
  import traceback
  from typing import Any, Dict, List
  import yaml
  import wandb
  from wandb import util, wandb_lib, wandb_sdk
  from wandb.agents.pyagent import pyagent
  from wandb.apis import InternalApi
  from wandb.sdk.launch.sweeps import utils
label_desc: Use image node_id 4 for calling the Agent obj's underlying member method code with example usage: obj.run() without return types