code: def _build_ssh_client(self):
          
          # Create instance of SSHClient object
          remote_conn_pre = paramiko.SSHClient()
  
          # Load host_keys for better SSH security
          if self.system_host_keys:
              remote_conn_pre.load_system_host_keys()
          if self.alt_host_keys and path.isfile(self.alt_key_file):
              remote_conn_pre.load_host_keys(self.alt_key_file)
  
          # Default is to automatically add untrusted hosts (make sure appropriate for your env)
          remote_conn_pre.set_missing_host_key_policy(self.key_policy)
          return remote_conn_pre
docs: Prepare for Paramiko SSH connection.