code: def read_backup_keys(self, recovery_key=False):
          
          api_path = '/v1/sys/rekey/backup'
          if recovery_key:
              api_path = '/v1/sys/rekey-recovery-key/backup'
          response = self._adapter.get(
              url=api_path,
          )
          return response.json()
docs: Retrieve the backup copy of PGP-encrypted unseal keys.
  
          The returned value is the nonce of the rekey operation and a map of PGP key fingerprint to hex-encoded
          PGP-encrypted key.
  
          Supported methods:
              PUT: /sys/rekey/backup. Produces: 200 application/json
              PUT: /sys/rekey-recovery-key/backup. Produces: 200 application/json
  
          :param recovery_key: If true, send requests to "rekey-recovery-key" instead of "rekey" api path.
          :type recovery_key: bool
          :return: The JSON response of the request.
          :rtype: dict