code: def annotation(self, name, value):
      self._kwargs["annotations"] = dict(
          self._kwargs.get("annotations", {}), **{name: value}
      )
      return self
  
imports: import json
  import math
  import random
  import time
  from metaflow.tracing import inject_tracing_vars
  from metaflow.exception import MetaflowException
  from metaflow.metaflow_config import KUBERNETES_SECRETS
label_desc: Use image node_id 13 for calling the KubernetesJob obj's underlying member method code with example usage: obj.annotation(name, value) and returns: self