function Get-PackageNuspecXmlV2 {
<#
.SYNOPSIS
    Returns the .nuspec XML object for the given package.

.PARAMETER FeedSource
    [string] Source feed used to look up the package by

.PARAMETER Name
    [string] Package name to lookup

.PARAMETER Version
    [string] Package version to lookup

.PARAMETER Package
    [Object] Known package object with properties as { Feed={ Source=; Name=; } Name=; Version=; }

.PARAMETER Credential
    [PSCredential] Credential used for talking to feeds as needed
#>
    [CmdletBinding(DefaultParameterSetName='RawArgs')]
    Param(
        [Parameter(Mandatory = $true, ParameterSetName = 'RawArgs')]
        [string]$FeedSource,
        [Parameter(Mandatory = $true, ParameterSetName = 'RawArgs')]
        [string]$Name,
        [Parameter(Mandatory = $true, ParameterSetName = 'RawArgs')]
        [string]$Version,

        [Parameter(Mandatory = $true, ParameterSetName = 'Package')]
        [object]$Package,

        [Parameter(Mandatory = $false)]
        [PSCredential]$Credential = $null
    )

    ## TODO: Can this pull from the local filesystem if it exists?
    ## This would let us fetch faster if the versions match as we could avoid network hops.

    $loglead = (Get-LogLeadName)

    if ($PSCmdlet.ParameterSetName -eq 'Package') {
        $FeedSource = $Package.Feed.Source
        $Name = $Package.Name
        $Version = $Package.Version
    }

    $splatVar = @{
        FeedSource = $FeedSource
        Name = $Name
        Version = $Version
        Credential = $Credential

        PackagePath = "$Name.nuspec"
    }

    # See if the nuspec is cached in the session.
    $existsInCache = ($Script:GetPackageNuspecXmlCacheName -eq $Name) -and
                     ($Script:GetPackageNuspecXmlCacheSource -eq $FeedSource) -and
                     ($Script:GetPackageNuspecXmlCacheVersion -eq $Version)

    if($existsInCache -and ($null -ne $Script:GetPackageNuspecXmlCacheNuspec)) {
        Write-Verbose "$loglead : Nuspec for $name|$version is cached. Returning cached version."
        return $Script:GetPackageNuspecXmlCacheNuspec
    }

    # Query for the nuspec from Proget.
    Write-Verbose "$loglead : Nuspec for $name|$version is not cached. Querying for nuspec from proget."
    [xml]$result = [xml](Get-PackageFile @splatVar)

    # Cache the nuspec.
    $Script:GetPackageNuspecXmlCacheName = $Name
    $Script:GetPackageNuspecXmlCacheSource = $FeedSource
    $Script:GetPackageNuspecXmlCacheVersion = $Version
    $Script:GetPackageNuspecXmlCacheNuspec = $result

    return $result
}