docstr: delete all the customer resources in k8s
docstr_tok: ["delete","all","the","customer","resources","in","k8s"]
code: def delete_all(self):
      """delete all the customer resources in k8s"""
      cus_objects = self.list_all()
      if len(cus_objects["items"]) > 0:
          for item in cus_objects["items"]:
              metadata_name = item["metadata"]["name"]
              self.delete(metadata_name)
  
file_path: milvus/tests/python_client/common/cus_resource_opts.py
imports: from __future__ import print_function
  import os
  from kubernetes import client, config
  from kubernetes.client.rest import ApiException
  from utils.util_log import test_log
  from common.common_type import in_cluster_env
label_desc: Use image node_id 7 for calling the CustomResourceOperations obj's underlying member method code with example usage: obj.delete_all() without return types