Create Snapshot API implementation using ole

[udaydruva]

I'm writing hyper-v library which gives ability to create snapshot and read disks.
I was able to take snapshot with below code
`
snapshotService, err := vm.getVSSSnapshotService() // returns object from SELECT * FROM Msvm_VirtualSystemSnapshotService
if err != nil {
return nil, fmt.Errorf("failed to get snapshot service: %w", err)
}

// Set up snapshot settings data
settingsData, err := vm.getSnapshotSettingsData(level) // returns settings object
if err != nil {
	return nil, fmt.Errorf("failed to get snapshot settings: %w", err)
}
defer settingsData.Release()

_, err = oleutil.PutProperty(settingsData, "ElementName", checkpointName)
if err != nil {
	return nil, fmt.Errorf("failed to set checkpoint name: %w", err)
}

// Get VM path and convert settings to text
vmPath, err := vm.getVMReferencePathForDebug()
if err != nil {
	return nil, fmt.Errorf("failed to get VM path: %w", err)
}

settingsDataString, err := oleutil.CallMethod(settingsData, "GetText_", 1)
if err != nil {
	return nil, fmt.Errorf("failed to get snapshot settings text: %w", err)
}
defer settingsDataString.Clear()

// Call CreateSnapshot - this returns a return code
fmt.Println("Creating snapshot with name:", checkpointName)

// Call CreateSnapshot normally (no job object parameter)
resultRaw, err := oleutil.CallMethod(snapshotService, "CreateSnapshot",
	vmPath,
	settingsDataString,
	int32(2)) // Snapshot type 2
if err != nil {
	return nil, fmt.Errorf("failed to call CreateSnapshot: %w", err)
}
defer resultRaw.Clear()

// Check return code
returnCode := int(resultRaw.Val)
fmt.Printf("CreateSnapshot returned code: %d\n", returnCode)

`

The resultRaw object only has Val which is 4096 for job started, snapshot is getting created, but I want to add ability to poll for job state but not able to figure out how to get the Job object.
I referred below link for snapshot creation.
https://learn.microsoft.com/en-us/windows/win32/hyperv_v2/createsnapshot-msvm-virtualsystemsnapshotservice

Help is appreciated if any other implementation is also available I can explore that too, please feel free to correct code if inefficiencies observed.