internal/functions/ConvertTo-Appliance.ps1

function ConvertTo-Appliance {
    [CmdletBinding()]
    Param(
        [Parameter(Mandatory, Position=0, ValueFromPipeline)]
        [ValidateNotNullOrEmpty()]
        $SL1Appliance,

        [Parameter(Mandatory, Position=1)]
        [ValidateRange(0,([int64]::MaxValue))]
        [int64]$Id
    )

    Process {
        $SL1Appliance | Add-Member -TypeName 'appliance'
        $SL1Appliance | Add-Member -NotePropertyName 'URI' -NotePropertyValue "/api/appliance/$($Id)"
        $SL1Appliance | Add-Member -NotePropertyName 'ID' -NotePropertyValue $Id
        $SL1Appliance
    }
}