code: def ready(self):
      self._container.reload()
      if self.status == "exited":
          from pytest_docker_tools.exceptions import ContainerFailed
  
          raise ContainerFailed(
              self,
              f"Container {self.name} has already exited before "
              "we noticed it was ready",
          )
  
      if self.status != "running":
          return False
  
      networks = self._container.attrs["NetworkSettings"]["Networks"]
      for _, n in networks.items():
          if not n["IPAddress"]:
              return False
  
      if "Ray runtime started" in super().logs():
          return True
      return False
  
file_path: ray/python/ray/tests/conftest_docker.py
imports: import time
  import pytest
  from pytest_docker_tools import container, fetch, network, volume
  from pytest_docker_tools import wrappers
  import subprocess
  from typing import List
label_desc: Use image node_id 1 for calling the Container obj's underlying member method code with example usage: obj.ready() and returns: False, False, True, False