add-ec2volume powershell script - need to get volume ID on new-ec2volume creation

Question

I have this powershell script I want to add a new drive to an existing instance

Param (
    [string][Parameter(Mandatory) = $True] $InstanceId
    [string][Parameter(Mandatory = $True)] $driveletter,
    [int][Parameter(Mandatory = $True)] $size,
    [string][Parameter(Mandatory) = $True)] $az,
    [string][Parameter(Mandatory = $True)] $Region,
    [string][Parameter(Mandatory) = $True] $volumetype
    

New-ec2volume -AvailabilityZone $az -VolumeType $volumetype -size $size -Region $Region

Add-EC2Volume -InstanceId $InstanceId -volumeId ???? -Device ????

I am unsure how to get the volumeId after the volume creation. Also the Device ID what should it be?