code: def _validate_job_labels(job_labels):
      """Validates job labels."""
      gcp.validate_job_labels(job_labels)
  
file_path: cloud/src/python/tensorflow_cloud/core/validate.py
imports: import os
  from .None import gcp
  from .None import machine_config
label_desc: Use image node_id 5 for calling a global function with example usage: _validate_job_labels(job_labels) without return types