code: def get_pod(pod_name_filter: str, namespace: str) -> Optional[str]:
      """Gets pods in the `namespace`.
  
      Returns the first pod that has `pod_name_filter` as a
      substring of its name. Returns None if there are no matches.
      """
      pod_names = get_pod_names(namespace)
      matches = [
          pod_name
          for pod_name in pod_names
          if pod_name_filter in pod_name
      ]
      if not matches:
          logger.warning(
              f"No match for `{pod_name_filter}` in namespace `{namespace}`."
          )
          return None
      return matches[0]
  
imports: import atexit
  import contextlib
  import logging
  import pathlib
  import subprocess
  import tempfile
  import time
  from typing import Any, Dict, Generator, List, Optional
  import yaml
  import os
  import ray
  from ray.job_submission import JobStatus, JobSubmissionClient
label_desc: Use image node_id 10 for calling a global function with example usage: get_pod(pod_name_filter, namespace) and returns: matches, None