Private/ConvertTo-Label.ps1

function ConvertTo-Label {
    <#
    .SYNOPSIS
    Extracted the conversion to private function in order to have a single place to
    select the properties to use when casting to custom object type
    #>

    [CmdletBinding()]
    [OutputType( [ConfluencePS.Version] )]
    param (
        # object to convert
        [Parameter( Position = 0, ValueFromPipeline = $true )]
        $InputObject
    )

    Process {
        foreach ($object in $InputObject) {
            Write-Verbose "[$($MyInvocation.MyCommand.Name)] Converting Object to Label"
            ($object | Select-Object `
                id,
                name,
                prefix
            ) -as [ConfluencePS.Label]
        }
    }
}