def pvm_instance(pvm_instance_id)
    pvm_instances_by_id[pvm_instance_id] ||= pvm_instances_api.pcloud_pvminstances_get(cloud_instance_id, pvm_instance_id)
  rescue IbmCloudPower::ApiError => err
    error_message = JSON.parse(err.response_body)["description"]
    _log.debug("PVMInstanceID '#{pvm_instance_id}' not found: #{error_message}")