code: def set_clusters_to_namespace(
      self, tenant: str, namespace: str, clusters: list
  ):
      session = self._create_session()
      response = session.post(
          self.service_url
          + "namespaces/{}/{}/replication".format(tenant, namespace),
          json=clusters,
      )
  
      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 15 for calling the PulsarManager obj's underlying member method code with example usage: obj.set_clusters_to_namespace(tenant, namespace, clusters) and returns: response