code: def get(self):
      if (
          time.time() - self._client_refresh_timestamp
          > CLIENT_REFRESH_INTERVAL_SECONDS
      ):
          self._refresh_client()
  
      return self._client
  
file_path: metaflow/metaflow/plugins/kubernetes/kubernetes_client.py
imports: import os
  import sys
  import time
  from metaflow.exception import MetaflowException
  from .kubernetes_job import KubernetesJob
label_desc: Use image node_id 3 for calling the KubernetesClient obj's underlying member method code with example usage: obj.get() and returns: self