code: def __str__(self):
      return "pciId: %s, customLabel: %s" % (
          self.pciId,
          self.customLabel,
      )
  
file_path: ray/python/ray/autoscaler/_private/vsphere/gpu_utils.py
imports: import logging
  from pyVim.task import WaitForTask
  from pyVmomi import vim
label_desc: Use image node_id 2 for calling the GPUCard obj's underlying member method code with example usage: obj.__str__() and returns: unknown