class_docstr: Abstract base class for all Kubernetes Resource operators.
  
  :param yaml_conf: string. Contains the kubernetes resources to Create or Delete
  :param namespace: string. Contains the namespace to create all resources inside.
      The namespace must preexist otherwise the resource creation will fail.
      If the API object in the yaml file already contains a namespace definition then
      this parameter has no effect.
  :param kubernetes_conn_id: The :ref:`kubernetes connection id <howto/connection:kubernetes>`
      for the Kubernetes cluster.
code: def hook(self) -> KubernetesHook:
      hook = KubernetesHook(
          conn_id=self.kubernetes_conn_id, config_file=self.config_file
      )
      return hook
  
imports: from __future__ import annotations
  from functools import cached_property
  from typing import TYPE_CHECKING
  import yaml
  from kubernetes.utils import create_from_yaml
  from airflow.models import BaseOperator
  from airflow.providers.cncf.kubernetes.hooks.kubernetes import KubernetesHook
  from airflow.providers.cncf.kubernetes.utils.delete_from import delete_from_yaml
  from airflow.providers.cncf.kubernetes.utils.k8s_resource_iterator import k8s_resource_iterator
label_desc: Use image node_id 4 for calling the KubernetesResourceBaseOperator obj's underlying member method code with example usage: obj.hook() and returns: hook