code: def unsubscribe_topic(
      self,
      tenant: str,
      namespace: str,
      topic: str,
      subscription_name: str,
  ):
      session = self._create_session()
      response = session.delete(
          self.service_url
          + "persistent/{}/{}/{}/subscription/{}".format(
              tenant, namespace, topic, subscription_name
          )
      )
      return response
  
imports: import json
  import logging
  import requests
  from requests.adapters import HTTPAdapter
  from urllib3.util.retry import Retry
label_desc: Use image node_id 22 for calling the PulsarManager obj's underlying member method code with example usage: obj.unsubscribe_topic(tenant, namespace, topic, subscription_name) and returns: response