unable to execute windows metadata from google storage account

[Zippyops]

Hi,
I can't able to use metadata for windows using storage account , below type i have used
gcompute_instance { 'instance-test':
ensure => present,
machine_type => 'n1-standard-1',
disks => [
{
auto_delete => true,
boot => true,
source => 'instance-test-os-1'
}
],
metadata => {
windows-startup-script-url => 'gs://powershell_script12/install.ps1',
},
network_interfaces => [
{
network => 'default',
access_configs => [
{
name => 'External NAT',
nat_ip => 'instance-test-ip',
type => 'ONE_TO_ONE_NAT',
},
],
}
],
I have tried with windows-startup-script-cmd method its only executed two commands.

please help me out this