original_docstring: Attempts to download the specified image from the registry.
  
      Args:
          duthost (SonicHost): The target device.
          registry (DockerRegistryInfo): The registry from which to pull the image.
          image_name (str): The name of the image to download.
          image_version (str): The version of the image to download.
      
docstring: Attempts to download the specified image from the registry.
docstring_tokens: Attempts to download the specified image from the registry .
code: def download_image(duthost, registry, image_name, image_version="latest"):
      """Attempts to download the specified image from the registry.
  
      Args:
          duthost (SonicHost): The target device.
          registry (DockerRegistryInfo): The registry from which to pull the image.
          image_name (str): The name of the image to download.
          image_version (str): The version of the image to download.
      """
      try:
          if registry.username and registry.password:
              duthost.command("docker login {} -u {} -p {}".format(registry.host, registry.username, registry.password))
      except RunAnsibleModuleFail as e:
          error_message = ("Could not login to Docker registry. Please verify that your DNS server is reachable, "
                           "the specified registry is reachable, and your credentials are correct.")
          logger.error(error_message)
          logger.error("Error detail:\n{}".format(repr(e)))
          raise RuntimeError(error_message)
  
      try:
          duthost.command("docker pull {}/{}:{}".format(registry.host, image_name, image_version))
      except RunAnsibleModuleFail as e:
          error_message = ('Image "{}:{}" not found. Please verify that this image has been uploaded to the '
                           "specified registry.".format(image_name, image_version))
          logger.error(error_message)
          logger.error("Error detail:\n{}".format(repr(e)))
          raise RuntimeError(error_message)
code_tokens: def download_image ( duthost , registry , image_name , image_version = "latest" ) : try : if registry . username and registry . password : duthost . command ( "docker login {} -u {} -p {}" . format ( registry . host , registry . username , registry . password ) ) except RunAnsibleModuleFail as e : error_message = ( "Could not login to Docker registry. Please verify that your DNS server is reachable, " "the specified registry is reachable, and your credentials are correct." ) logger . error ( error_message ) logger . error ( "Error detail:\n{}" . format ( repr ( e ) ) ) raise RuntimeError ( error_message ) try : duthost . command ( "docker pull {}/{}:{}" . format ( registry . host , image_name , image_version ) ) except RunAnsibleModuleFail as e : error_message = ( 'Image "{}:{}" not found. Please verify that this image has been uploaded to the ' "specified registry." . format ( image_name , image_version ) ) logger . error ( error_message ) logger . error ( "Error detail:\n{}" . format ( repr ( e ) ) ) raise RuntimeError ( error_message )
short_docstring: Attempts to download the specified image from the registry.
short_docstring_tokens: Attempts to download the specified image from the registry .
comment: """Attempts to download the specified image from the registry.
  
      Args:
          duthost (SonicHost): The target device.
          registry (DockerRegistryInfo): The registry from which to pull the image.
          image_name (str): The name of the image to download.
          image_version (str): The version of the image to download.
      """