https://github.com/ansible-collections/vmware.vmware_rest/issues/389
Ansible version:
```
ansible [core 2.11.12]
config file = /home/user/.ansible.cfg
configured module search path = ['/home/user/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
ansible python module location = /opt/ansible/os9_prov_vmw_20230117/lib64/python3.6/site-packages/ansible
ansible collection location = /home/user/.ansible/collections:/usr/share/ansible/collections
executable location = /opt/ansible/os9_prov_vmw_20230117/bin/ansible
python version = 3.6.8 (default, Aug 13 2020, 07:46:32) [GCC 4.8.5 20150623 (Red Hat 4.8.5-39)]
jinja version = 3.0.3
libyaml = True
```
Collection version:
```
vmware.vmware_rest 2.2.0
```
The implementation:
```yaml

• name: "The VM is powered off"
  delegate_to: localhost
  vmware.vmware_rest.vcenter_vm_guest_power:
  vcenter_hostname: "{{ svrreq_vm.vcenter }}"
  vcenter_username: "{{ survey_username }}"
  vcenter_password: "{{ survey_password }}"
  vm: "{{ deployed_vm.vm_deploy_info.vm_id }}"
  state: shutdown
  register: vm_shutdown
  ```
  The result when the VM was running before the call:
  ```
  ok: [localhost -> localhost] => {
  "changed": false,
  "invocation":
  Unknown macro: { "module_args"}

  ,
  "value": {}
  }
  ```
  The result when the VM was powered off before the call:
  ```
  ok: [localhost -> localhost] => {
  "changed": false,
  "invocation":

  Unknown macro: { "module_args"}

  ,
  "value":

  Unknown macro: { "error_type"}

  }
  ```

1. 1. Expected results:
      `changed: true` is returned by the module when there is a power state change.

1. 1. Actual results:
      `changed: false` is returned by the module when there is a power state change. To actually detect a power state change I would need to call `vmware.vmware_rest.vcenter_vm_guest_power_info` first and compare the power state to the result of this call to detect a change. This would get messy when changing the power state of more than one VM at a time.